The 34-year-old beauty stars alongside the 'Pirates of the Caribbean' actor in the upcoming action-comedy in which he takes on the role of art dealer Charles Mortdecai, and she's revealed their character's both have very big personalities.
Quizzed on what it was like to make the movie, she told Collider: ''Working with Johnny is so much fun because he is so much this character and it so much fun to play opposite him.
''My character and his character, we both have very big characters who have very big ways of living their lives. And my character has some moustache fetishes and things that come with that.
''But it was fun because, when you're playing against somebody else who plays such big characters, but in a very real way, that's the most fun.''
Munn also admitted that she felt as though she'd won the lottery when she was given a role in the film, which will follow Depp's character as he searches for a stolen painting that's reportedly linked to a lost bank account filled with Nazi gold.
The 'Deliver Us From Evil' actress confessed: ''These characters are very extreme, but to them they're just living life. And it was fun just to be allowed to play with that calibre of movie star.
''I've definitely often times felt like I won a raffle at the grocery store. It's like, 'Hey you guys. I have to be here, you have to let me be here because I got the ticket. So you can't make me go home.''
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