I Think I Love My Wife (2007)

This was just released on March 16. Here's what movies.com says about it. "Richard (Chris Rock) is a happily married husband and father whose wife Brenda (Gina Torres) is drop-dead gorgeous and ultra-smart. Yet, after several years of marriage, Richard is growing bored with his existence, but doesn't know what to do about it. In steps Nikki (Kerry Washington), a woman from Richard's past who promises an exciting future, if she can pry the married man from his comfortable suburban home. Written and directed by Rock."