Katie’s latest role was in Run, which concluded last Thursday.
Set on the streets of Brixton, South London, she played an illegal immigrant, and the role was a tough one as it involved her being raped.
But getting to be Pattinson's onscreen girlfriend in Harry Potter and the Goblet of Fire and kiss Radcliffe in the following film The Order of the Pheonix weren't enough to convince Katie Leung she was in the right business.
Katie says: 'It is a great honour to be involved in such an extraordinary project and especially to be playing the role based on Jung Chang.
Before Ginny, Harry Potter didn’t have much luck with love.
'At the end of the second date I pulled a move out of the Bela Lugosi 'Book of Woo' - I went to kiss Rosie and at the last minute lost my nerve and ended up kissing her neck, which is such a weirdly intimate place to kiss somebody on a second date. I feel Brad Pitt would agree that the way to help is to really get behind things that you're passionate about, like The Trevor Project. Offering his thoughts on marriage, he said: 'I've got a great example to look at in my parents, because they've been married for at least 25 years and, I think, they were together for about five more before that. Radcliffe said he was realistic about the limits of his success.
'I have accepted that,' he said 'In a way it's a great relief that I will never, ever do a film as successful as the Harry Potter series.
‘I will always be grateful for the opportunity the Harry Potter films gave me.
Katie was selected from more than 3,000 hopefuls and catapulted to stardom.
Fast forward to the present day and Katie, 28, sits in a Glasgow hotel looking adorably like a fawn caught in the headlights.