Car Wash is a 1976 American comedy film released by Universal Pictures. The Art Linson Production was directed by Michael Schultz from a screenplay by Joel Schumacher. Starring Franklyn Ajaye, Bill Duke, George Carlin, Irwin Corey, Ivan Dixon, Antonio Fargas, Jack Kehoe, Clarence Muse, Lorraine Gary, The Pointer Sisters and Richard Pryor, Car Wash is an episodic comedy about a day in the lives of the employees and the owner, Mr. B (Sully Boyar), of a Los Angeles, California car wash (filmed at a Westlake car wash at the corner of Rampart Blvd. and 6th Street). Wikipedia
Charlie: I just don't understand white folk.