Five Minutes to Live (1961)
Chosen by me from a list of public domain movies
A cheap and ramshackle effort but one with it's interesting moments. Cash is reasonable as an unstable thug (who plays the guitar, natch) and we have a very young Ron Howard (still Ronnie at his point) as an annoying kid.
It throws a couple of reasonable twists into proceedings but doesn't follow through in any great detail (it's about 75 mins long), and spends a long time just viewing the family's everyday life.