MPAA Rating: R/ Genre: Mockumentary/Stars: Michael McKean, Christopher Guest, Harry Shearer, Rob Reiner, Tony Hendra, R.J. Parnell, David Kaff, June Chadwick, Bruno Kirby, Ed Begley Jr., Danny Kortchmar, Fran Drescher, Patrick Macnee, Julie Payne, Dana Carvey, Sandy Helberg, Zane Buzby, Billy Crystal, Paul Benedict, Howard Hesseman, Paul Shortino, Lara Cody,…