Leonard Solomon “Len” Blum, (born 1951) is an award winning Canadian screenwriter, film producer and film composer. He graduated from McMaster University with a Bachelor of Arts in 1975 and wrote many films including Meatballs, Stripes, Heavy Metal, , Meatballs III: Summer Job, Feds, Beethoven's 2nd, Private Parts, The Pink Panther and Over the Hedge. Prior to his film career, he was a songwriter and produced radio commercials. He won the Genie Award for Best Original Screenplay, in 1980, for the film Meatballs.