The 30-year-old made his movie debut in the flick Crazy, Stupid, Love as Emma Stone's boyfriend and they got to have a kiss during one scene, although it didn't make the final cut.
Speaking to GQ magazine, he said: 'After one of our scenes, the directors said: 'This is feeling a little goofy. Let's try this with a kiss at the end.'
'And I thought: 'Holy s***! I've never kissed on-camera before. What do I have to do? I didn't take that class in college.''
He added: 'Emma's just this total pro. She pulls out her lip gloss and says: 'It's cherry. That cool with you?''