There have been rumors that Ewan and his wife have an open marriage, so there might be a chance that Ewan and Melanie are together and his wife knows. The open marriage information came out when Ewan seemed to have too-close-for-comfort relationships with Nicole Kidman and Michelle Williams.

There's also a chance they Ewan and Melanie are just friends. They finished filming the movie "Beginners" in December. Ewan is known to be very affectionate with his co-stars. Just last week he was kissing Jim Carrey on the red carpet for the Paris premiere of their film "I Love You Phillip Morris". There are pics of him kissing Nicole Kidman (Moulin Rouge) and Hayden Christenson (Star Wars).