OK, maybe they weren't exactly separated at birth, but Owen Wilson will portray John Grogan in the upcoming movie version of Grogan's bestselling book, Marley & Me.

Wilson, going back to work for the first time since his suicide attempt last summer, will begin shooting March 10. The movie is scheduled for a Christmas release.

Jennifer Aniston co-stars in the movie about a couple that adopts a dog as a trial run for parenthood.

Grogan, a former Philadelphia Inquirer columnist, told People Magazine, "I'm thrilled they're starting production on this. It's been a long time coming and I really couldn't be happier. ... I read the script and I like it. I think it's really true to the book."

The author is happy with the choice of Wilson, too. "We don't look anything alike, but I think his personality will be a great fit to my own. And my wife, Jenny, is thrilled with being played by Jennifer Aniston, and so am I. What's not to like, right?"

More information about the dog, the book, the sequels and the author are available at Marleyandme.com.