Johnny Depp and his companion French artist Vanessa Paradis.(Xinhua/Reuters File Photo) Photo Gallery>>>

    BEIJING, July 1-- The 46-year-old actor has revealed he and French beauty Marion Cotillard would speak to each other in the European language so cast and crew members would not know what they were talking about.

    He said: "We would sometimes speak French to each other on the set, especially when we didn't want anyone else to know what we were saying!"

    However, the 33-year-old actress quickly grew tired of speaking in her native language because she felt it was affecting her acting.

Cast member Johnny Depp arrives for a screening of "Public Enemies" in Chicago June 18, 2009.(Xinhua/Reuters File Photo) Photo Gallery>>>

    She said: "Johnny's French is excellent. But I could not let myself lapse into speaking a lot of pure French with Johnny. I was working so hard to really perfect the accent of my character Billie Frechette, and that was not easy. She was of mixed heritage - both French and Native American - and supposedly had an accent that was quite different."

    Johnny - who lives in the South of France with his long-term partner Vanessa Paradis and their two children, 10-year-old Lily-Rose and Jack, seven - praised his co-star for her acting skills and can understand why his character was attracted to Billie.

    He said: "Marion really worked hard on that accent, and I think the way she speaks in the film adds so much to the personality of the character she plays. You can see why Dillinger fell in love with her so easily."

    Although Johnny and Marion were happy to gossip off-screen, their co-star Christian Bale admits he was more reclusive.

    He said: "I wish to not talk unless we're doing the scene. I enjoy it that way. Johnny seemed happy to do it that way, too. So the answer is, no, we really didn't get to know each other better between each take.

    "So I guess I'll have to wait and get to know Johnny Depp someday."

    (Source: China Daily/Agencies)