Dennis Quaid has joined the cast of 'What to Expect When You're Expecting'.

The 'Footloose' star will play Ramsey, a man who discovers his lover played by Brooklyn Decker is pregnant with twins at the same time as his son Colin is due to become a new father in the ensemble comedy which is based on a guidebook for new parents by Heidi Murkhoff.

Dennis is the latest star to join the cast with Cameron Diaz previously signing up to play the role of a fitness instructor.

Other actors to appear in the movie include Jennifer Lopez, Elizabeth Banks, Anna Kendrick, Chace Crawford, Rebel Wilson, Matthew Morrison, and Joe Manganiello.

'NANNY MCPHEE' director Kirk Jones is helming the motion picture, which will feature five sets of expectant parents after Shauna Cross - who wrote the movie adaptation for 'Whip It', which was directed by Drew Barrymore - cut it down from seven.

Mike Medavoy, Arnie Messer and David Thwaites will produce the movie for Lionsgate.

Filming is set to begin this month for a scheduled May 11, 2012 release.