Follow Me Quietly (1949)
An obsessed cop tracks an elusive serial killer who strangles his victims on rainy nights
Superman and the MoleMen (1951)
When underground beings explore the surface world from a deep oil well and inadvertantly cause a panic, only Superman can prevent a tragedy
Butch and Sundance: The Early Days (1979)
A prequel of sorts to Butch Cassidy and the Sundance Kid 1969 which chronicles the two outlaws lives in the years before the events portrayed in the 1969 movie