Question: What is the name of the rock musical with music, lyrics and books by Jonathan Larwson and starred Anthony Rapp as Mark Cohen?
Sentence (from "Open House (2004 film)"): Open House is a 2004 real estate musical film starring Hedy Burress, Ann Magnuson, Anthony Rapp, Sally Kellerman, Jenna Leigh Green and Kellie Martin, and directed by Dan Mirvish, a co-founder of the Slamdance Film Festival.
Relevant evidence: No