Heather Graham has just signed on to join Jerry O'Connell, John Corbett, Katie Finneran, Ian Ziering and Lara Flynn Boyle in the independent romantic comedy Baby on Board. According to The Hollywood Reporter, Brian Herzlinger will direct the Russell Scalise and Michael Wright screenplay.

Baby on Board centers on a happily married couple (O'Connell, Graham) whose lives and high-powered careers are thrown into chaos thanks to an unplanned pregnancy. Corbett and Finneran play their best friends, a bitter couple whose misguided advice on parenting and marriage only makes things worse.

Production for Baby on Board is set to start Tuesday on location in Chicago.