Zach Galifianakis, Justin Bartha, Ed Helms, Heather Graham, Bradley Cooper, Ken Leong(01 of28)
Open Image ModalFrom left, Zach Galifianakis, Justin Bartha and guest, Ed Helms, Heather Graham, Bradley Cooper, Ken Leong and guest pose for the camera at the UK premiere of The Hangover Part III at the Empire Leicester Square in London on Wednesday, May 22, 2013. (Photo by Jon Furniss/Invision/AP) (credit:AP)
The Hangover Part 3 European Premiere - London(02 of28)
Open Image ModalHeather Graham arriving for the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
The Hangover Part 3 European Premiere - London(03 of28)
Open Image ModalTanya Burr arriving for the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
Justin Bartha, Ed Helms, Bradley Cooper, Zach Galifianakis(04 of28)
Open Image ModalFrom left, at rear, Justin Bartha, Ed Helms, and Bradley Cooper and at the front, Zach Galifianakis pose for the camera at the UK premiere of The Hangover Part III at the Empire Leicester Square in London on Wednesday, May 22, 2013. (Photo by Jon Furniss/Invision/AP) (credit:AP)
The Hangover Part 3 European Premiere - London(05 of28)
Open Image ModalMollie King, Una Healy, Vanessa White and Frankie Sandford of The Saturdays arriving for the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
The Hangover Part 3 European Premiere - London(06 of28)
Open Image ModalBradley Cooper arriving for the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
The Hangover Part 3 European Premiere - London(07 of28)
Open Image ModalAmelia Lily Oliver arriving for the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
The Hangover Part 3 European Premiere - London(08 of28)
Open Image ModalHeather Graham arriving for the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
Zach Galifianakis(09 of28)
Open Image ModalZach Galifianakis signs autographs upon arrival at the UK premiere of The Hangover Part III at the Empire Leicester Square in London on Wednesday, May 22, 2013. (Photo by Jon Furniss/Invision/AP) (credit:AP)
The Hangover Part 3 European Premiere - London(10 of28)
Open Image ModalEd Helms arriving for the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
The Hangover Part 3 European Premiere - London(11 of28)
Open Image ModalHeather Graham arriving for the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
The Hangover Part 3 European Premiere - London(12 of28)
Open Image ModalBradley Cooper arriving for the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
Justin Bartha(13 of28)
Open Image ModalJustin Bartha poses with fans at the UK premiere of The Hangover Part III at the Empire Leicester Square in London on Wednesday, May 22, 2013. (Photo by Jon Furniss/Invision/AP) (credit:AP)
The Hangover Part 3 European Premiere - London(14 of28)
Open Image ModalMollie King, Una Healy, Vanessa White and Frankie Sandford of The Saturdays arriving for the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
Ken Leong(15 of28)
Open Image ModalKen Leong arrives at the UK premiere of The Hangover Part III at the Empire Leicester Square in London on Wednesday, May 22, 2013. (Photo by Jon Furniss/Invision/AP) (credit:AP)
Zach Galifianakis(16 of28)
Open Image ModalZach Galifianakis arrives at the UK premiere of The Hangover Part III at the Empire Leicester Square in London on Wednesday, May 22, 2013. (Photo by Jon Furniss/Invision/AP) (credit:AP)
Todd Phillips(17 of28)
Open Image ModalDirector Todd Phillips arrives at the UK premiere of The Hangover Part III at the Empire Leicester Square in London on Wednesday, May 22, 2013. (Photo by Jon Furniss/Invision/AP) (credit:AP)
Heather Graham(18 of28)
Open Image ModalHeather Graham arrives at the UK premiere of The Hangover Part III at the Empire Leicester Square in London on Wednesday, May 22, 2013. (Photo by Jon Furniss/Invision/AP) (credit:AP)
Ed Helms(19 of28)
Open Image ModalEd Helms arrives at the UK premiere of The Hangover Part III at the Empire Leicester Square in London on Wednesday, May 22, 2013. (Photo by Jon Furniss/Invision/AP) (credit:AP)
Justin Bartha(20 of28)
Open Image ModalJustin Bartha arrives at the UK premiere of The Hangover Part III at the Empire Leicester Square in London on Wednesday, May 22, 2013. (Photo by Jon Furniss/Invision/AP) (credit:AP)
The Hangover Part 3 European Premiere - London(21 of28)
Open Image ModalKen Jeong arriving for the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
The Hangover Part 3 European Premiere - London(22 of28)
Open Image ModalZach Galifianakis admires a tree at the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
The Hangover Part 3 European Premiere - London(23 of28)
Open Image ModalKen Jeong, Tran Ho and Bradley Cooper share a joke at the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
The Hangover Part 3 European Premiere - London(24 of28)
Open Image ModalHeather Graham arriving for the European premiere of The Hangover Part 3, at the Empire Leicester Square, London. (credit:PA)
The Hangover III - UK Film Premiere(25 of28)
Open Image ModalLONDON, ENGLAND - MAY 22: Heather Graham attends The Hangover III - UK film premiere at The Empire Cinema on May 22, 2013 in London, England. (Photo by Neil P. Mockford/Getty Images) (credit:Getty Images)
The Hangover III - UK Film Premiere(26 of28)
Open Image ModalLONDON, ENGLAND - MAY 22: Zach Galifianakis attends The Hangover III - UK film premiere at The Empire Cinema on May 22, 2013 in London, England. (Photo by Neil P. Mockford/Getty Images) (credit:Getty Images)
The Hangover III - UK Film Premiere(27 of28)
Open Image ModalLONDON, ENGLAND - MAY 22: Bradley Cooper attends The Hangover III - UK film premiere at The Empire Cinema on May 22, 2013 in London, England. (Photo by Neil P. Mockford/Getty Images) (credit:Getty Images)
The Hangover III - UK Film Premiere(28 of28)
Open Image ModalLONDON, ENGLAND - MAY 22: Heather Graham attends The Hangover III - UK film premiere at The Empire Cinema on May 22, 2013 in London, England. (Photo by Neil P. Mockford/Getty Images) (credit:Getty Images)