Hi Dave
Lewton's films were the low budget RKO horror productions of the 40s: Cat People, I Walked with a Zombie, Curse of the Cat People, Leopard Man, Seventh Victim, Isle of the Dead, Bedlam, The Body Snatcher. They are extremely atmospheric, black and white little films, imaginative use of standing sets of RKO (for example the Magnificent Ambersons' mansion) and famous for the use of suggestion instead in evoking horror instead of monsters, makeup, etc. But Roy Webb really outdid himself on the scores. They were recently re-recorded as one of that great series of old film scores on the Marco Polo label (which includes the Universal monster movies) reconstructed and orchestrated (by ear) from the original three staff scores by John Morgan to match the original orchestrations. An extremely difficult thing to do - listening to the old film soundtrack mixed with dialogue, effects, etc. as your only guide. They sound flawless to me.