Ben Affleck was shocked when he realised his son had been hanging out with royals in London.
The 44-year-old actor had taken his three children, Violet, 10, Seraphina, seven, and Sam, four, to an indoor play area without realising Prince George and Princess Charlotte were there, too.
“I noticed this weird vibe from the other grown-ups,” he said on the Graham Norton Show in an episode airing Friday 4 November on BBC1.
“I thought, ‘For a kids’ place this is tight security!’ but I was the very last person to realise that Prince George and Princess Charlotte were in there playing with my kid,” he explained.
Susan Walsh/AP
There was one drawback about the royal meeting: Affleck’s son caught a cold. Although the dad didn’t seem to mind too much.
“I can now tell [Sam] that he got a cold from the King of England,” the actor adds.
Affleck has three children with former partner Jennifer Garner. The couple split in 2015 after 10 years of marriage.
Prince George At The Air Tattoo
(01 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge and Prince George during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(02 of40)
Prince George wears ear defenders as he sits in a helicopter, during a visit to the Royal International Air Tattoo at RAF Fairford - the world's largest military airshow, with his parents the Duke and Duchess of Cambridge. (credit:Chris Radburn/PA Wire)
(03 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge and Prince George speak to Carol Vorderman, Ambassador for the RAF Air Cadets after arriving for a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(04 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge and Prince George arrive for a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(05 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge and Prince George arrive for a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(06 of40)
FAIRFORD, ENGLAND - JULY 08: (EDITORS NOTE: Retransmission of #545492832 with alternate crop.) Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge and Prince George arrive for a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(07 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge (L), Catherine, Duchess of Cambridge and Prince George arrive for a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(08 of40)
FAIRFORD, ENGLAND - JULY 08: (EDITORS NOTE: Retransmission of #545493084 with alternate crop.) Prince William, Duke of Cambridge and Prince George speak to Carol Vorderman, Ambassador for the RAF Air Cadets after arriving for a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(09 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge and Prince George during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(10 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge and Prince George during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(11 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge and Prince George during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(12 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge and Prince George during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(13 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge and Prince George during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(14 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge and Prince George look at a Squirrel helicopter during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(15 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge and Prince George during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(16 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge and Prince George during Visit The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Luca Teuchmann/WireImage) (credit:Luca Teuchmann via Getty Images)
(17 of40)
FAIRFORD, ENGLAND - JULY 08: Prince George shakes hands with a pilot as Catherine, Duchess of Cambridge looks on during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(18 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge and Prince George sit inside a Squirrel helicopter during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(19 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge and Prince George sit inside a Squirrel helicopter during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Luca Teuchmann/WireImage) (credit:Luca Teuchmann via Getty Images)
(20 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge and Prince George during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(21 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge and Prince George during Visit The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Luca Teuchmann/WireImage) (credit:Luca Teuchmann via Getty Images)
(22 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge and Prince George during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(23 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge, Prince George and Prince William, Duke of Cambridge arrive for a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(24 of40)
FAIRFORD, ENGLAND - JULY 08: Prince George during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(25 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge and Prince George during Visit The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Luca Teuchmann/WireImage) (credit:Luca Teuchmann via Getty Images)
(26 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge, Prince George and Prince William, Duke of Cambridge arrive for a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(27 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge and Prince George during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(28 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge and Prince George of Cambridge attend the The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Samir Hussein/WireImage) (credit:Samir Hussein via Getty Images)
(29 of40)
FAIRFORD, ENGLAND - JULY 08: Prince William, Duke of Cambridge and Prince George of Cambridge attend the The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Samir Hussein/WireImage) (credit:Samir Hussein via Getty Images)
(30 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge and Prince George of Cambridge attend the The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Samir Hussein/WireImage) (credit:Samir Hussein via Getty Images)
(31 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge and Prince George of Cambridge attend the The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Samir Hussein/WireImage) (credit:Samir Hussein via Getty Images)
(32 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge and Prince George of Cambridge attend the The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Samir Hussein/WireImage) (credit:Samir Hussein via Getty Images)
(33 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge and Prince George of Cambridge attend the The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Samir Hussein/WireImage) (credit:Samir Hussein via Getty Images)
(34 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge, Prince George of Cambridge and Prince William, Duke of Cambridge sit in a helicopter as they attend the The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Samir Hussein/WireImage) (credit:Samir Hussein via Getty Images)
(35 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge, Prince George of Cambridge and Prince William, Duke of Cambridge sit in a helicopter as they attend the The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Samir Hussein/WireImage) (credit:Samir Hussein via Getty Images)
(36 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge and Prince George of Cambridge attend the The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Samir Hussein/WireImage) (credit:Samir Hussein via Getty Images)
(37 of40)
FAIRFORD, WALES - JULY 08: Catherine, Duchess of Cambridge and Prince George during a visit to the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Chris Jackson/Getty Images) (credit:Chris Jackson via Getty Images)
(38 of40)
FAIRFORD, ENGLAND - JULY 08: Catherine, Duchess of Cambridge, Prince George of Cambridge and Prince William, Duke of Cambridge sit in a helicopter as they attend the The Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Samir Hussein/WireImage) (credit:Samir Hussein via Getty Images)
(39 of40)
Prince George looks at a helicopter with his mother the Duchess of Cambridge during a visit to the Royal International Air Tattoo at RAF Fairford - the world's largest military airshow. (credit:Chris Radburn/PA Wire)
(40 of40)
Prince George is lifted from a helicopter by his parents the Duke and Duchess of Cambridge, during a visit to the Royal International Air Tattoo at RAF Fairford - the world's largest military airshow. (credit:Chris Radburn/PA Wire)