I know, there were a lot of direct references from the movie, such as the "O's" on the audiences mouth, people walking out, the main character going on and on, people raving about the show during intermiss and the producers/people associated with the show (Ann Bancroft and Mel Brooks) in the bar buying drinks.
Did Larry and/or David actually ever go on for real? BTW, I had to watch it a couple of times ("Opening Night" and "King of Broadway") because I love the show!
"We like to snark around here. Sometimes we actually talk about theater...but we try not to let that get in our way." - dramamama611