In one night scene lit by car headlights, the "headlights" are actually just two halogen work lamps mounted on a C-stand.
Nathan Leopold Jr.:
If I do what you want...
Richard Loeb: I'll do what you want.
It is stated during the epilogue that Compulsion, film made about the Loeb & Leopold case, was released in 1958. The movie came out in 1959.