movies: Who directed "How Green Was My Valley"?

Questions

pink floyd followed up 'dark side of the moon' with which release in 1975, whose title sounds like a note on a postcard?

president clinton's campaign song 'don't stop' by fleetwood mac, was off which album recorded years earlier?

produced by thomas dolby, which album did joni mitchell release in 1985?

prosthetics deals with the making of ______?

which group recorded 'psycho killer'?