Kiss Kiss Bang Bang (2005)

A murder mystery brings together a private eye, a struggling actress, and a thief masquerading as an actor.

http://www.imdb.com/title/tt0373469/

50 First Dates (2004)

Henry Roth is a man afraid of commitment up until he meets the beautiful Lucy. They hit it off and Henry think he's finally found the girl of his dreams, until he discovers she has short-term memory loss and forgets him the very next day.

http://www.imdb.com/title/tt0343660/

Stars:

 Adam Sandler, Drew Barrymore