Katie Holmes, who denied reports she is pregnant with her second child with Tom Cruise, will star opposite ‘Gossip Girl’s’ young hottie 26 year old Chace Crawford in romantic comedy ‘Responsible Adults,’ as a 30 year old woman who starts to date a younger guy and soon realizes she used to babysit him. Filming begins in Los Angeles this Fall. Be a nice change for Katie who at 32 is 16 years younger than Cruise. Here’s Katie with what looks like a bit of a baby bump shopping in the shoe department at Barneys of New York in Beverly Hills California a few weeks ago.