Premise: Happy Mother's Day, Love George (also known Run Stranger, Run) is a 1973 American mystery film produced and directed by Darren McGavin. The film stars Patricia Neal, Cloris Leachman, Bobby Darin, Tessa Dahl, Ron Howard, Kathie Browne, Joe Mascolo, Simon Oakland, and Thayer David.
Hypothesis: Happy Mother's Day is the only name this film is called.