Why are Jim Carrey and Ewan McGregor kissing? Well, why not? "Carrey and McGregor are in France to promote their new film, I Love You Phillip Morris," reports Celebuzz. Also, France has honoured both men by making them knights in the National Order of Arts and Letters .

"I Love You Phillip Morris" description via Wikipedia:

"I Love You Phillip Morris" is an upcoming comedy-drama film based on the real life events of con artist, impostor, and multiple prison escapee Steven Jay Russell played by (Jim Carrey). While incarcerated, Russell falls in love with his cell mate, Phillip Morris (Ewan McGregor). After Morris is released from prison, Russell escapes from prison four times in order to be reunited with Morris.
After original difficulty finding a U.S. distributor, likely due to its homosexual content, the film was re-edited. It was recently announced by Variety that Consolidated Pictures Group has acquired the rights for distribution.

The film was adapted from I Love You Phillip Morris: A True Story of Life, Love, and Prison Breaks by Steve McVicker.