Question: What is the title of this mockumentary film that Fred Willard, Christopher Guest, and Rob Reiner were involved with?
Sentence (from "Fred Willard"): He is known for his roles in the Rob Reiner mockumentary film "This Is Spinal Tap", the Christopher Guest mockumentary films "Waiting for Guffman", "Best in Show", "A Mighty Wind", "For Your Consideration", and "Mascots", and the "" films.
Relevant evidence: Yes