Question: What film, directed by Claudia Weill, starred the writer of the film "This is Spinal Tap"? 
Sentence (from "Claudia Weill"): Claudia Weill is an American film director best known for her film "Girlfriends" (1978), starring Melanie Mayron, Christopher Guest, Bob Balaban and Eli Wallach, made independently and sold to Warner Bros after multiple awards at Cannes, Filmex and Sundance. "
Relevant evidence: Yes