Paternity and Maternity Suits... Hollywood.

Three 2008 movies -- Definitely, Maybe, the smart rom-com starring Ryan Reynolds that's still in a few theaters, Chaos Theory, the not-so-smart rom-com starring Ryan Reynolds opening April 11, and Mamma Mia!, the Meryl Streep-does-Abba adaptation of the smash Broadway musical, coming in July (and not starring Ryan Reynolds) -- share eerily similar plot-lines.

In Definitely, Maybe, Reynolds recounts his amorous past to his cute-as-a-button daughter, changing the names of his three girlfriends, as his little girl tries to guess which one turned out to be her mother.

In Chaos Theory, it seems that Reynolds' character, married to Emily Mortimer with a cute-as-a-button daughter, may not be the biological father of same, after all. The real dad could have been best buddy Stuart Townsend.

And in Mamma Mia!, a young bride-to-be (Amanda Seyfried) discovers her mother's (Streep's) old diary and its entries describing intimate liaisons with three men. The daughter figues that one of the three has to be her dad, and invites the gentlemen to her wedding -- without letting Mom know. The suspected pops are played by Pierce Brosnan, Colin Firth, and Stellan Skarsgård.