From the Saturday Stumper

Today’s Newsday Saturday Stumper, by Matthew Sewell, is tough, mostly because of clues that point in several directions, or in no direction. For instance, 5-Across, five letters: “Puts out.” EMITS? OUSTS? No.

Two clues I especially liked: 25-Down, four letters: “Element of film noir lighting.” And 34-Down, “Film studied in physics labs.” No spoilers: the answers are in the comments.