Vicky, who plays girlfriend Shell of Jonny’s character Dixie, tells HuffPostUK:
“It’s amazing that you find someone you love and then you’re with them on screen. We hit it off straight away, but we tried not to make a big deal out of it for the sake of the rest of the team, and they didn’t seem too bothered, either.
“I’m really chuffed when people tell me they thought we had chemistry on the screen, without them realising that we were actually together. It’s obviously plain to see,” she chuckles.
Vicky hadn’t met Jonny before agreeing to appear in the film, which tells the sweetly comedic tale of a young Welshman with ambitions to enter the music industry, and is based on a series of videos that found an audience on YouTube.
With barely a few coins in his pocket but dreams full to bursting, he persuades his girlfriend to accompany him to London, where they discover that taking a band to the top of the chart isn’t that straightforward - despite some winning cameo performances from Martin Freeman and Alan McGee (founder of Creation Records, and regular blogger for HuffPostUK).
Vicky McClure and Jonny Owen aren't the first people to get loved up on a film set. In fact, they follow in a healthy tradition, as Vicky admits happily...
"I figure I worked in an office for eight years, and it happened there all the time, so this is just the equivalent of that, really, or any people who spend a long time together," she says. "Just this time, people get to hear about it."
Vicky has just finished appearing in the nail-biting second series of ‘Line of Duty’ – a series of which she is rightly proud, including one particular scene…
Her CV is particularly impressive right now, with last year’s breakout hit ‘Broadchurch’ also featuring her striking role of curious journalist Carol.
Vicky won’t be appearing in the next series of ‘Broadchurch’ – as she says, “my character was an outsider, she wasn’t from there, so it wouldn’t really make sense”, but she remains proud of both this and ‘Line of Duty’.
“I’m so pleased I’ve made these choices. But I’m always wafting around. Maybe one day I’ll be the actual murderer.”
Jonny Owen, consider yourself warned.
'Svengali' is in UK cinemas from today. Watch the trailer below...