Actor Michael Douglas says he always enjoyed a great rapport with all his female co-stars, except one. Although he didn't reveal the name of that one actress, the the 69-year showered praise on Diane Keaton, who plays his love interest in And So It Goes."She's like a muse. She's so bright, yet not threatening. She's got that wonderful laugh and laughs at my jokes, which is always flattering. She's very, very charming and attractive,” contactmusic.com quoted him as saying."I've been very fortunate with all except for one of all the leading ladies that I've worked with... Some are cooler and more formal. It's so pleasant not to have any friction. Diane just comes to the set and off you go,” he added.