Yeah, but Will Ferrell and Uma Thurman are and Broderick is a known movie actor, so its not like people stayed away because there was no one they were familiar with. This movie had good screenings in the NY/NJ area, however, these people were already familiar with the show and its premise because of all the Broadway coverage.
The problem was that it didn't translate well to film and that responsibility lies with the producer and the director. To blame Nathan Lane's lack of movie star quality is not THE reason this film didn't do well. I'd once like to hear a producer or director take some of the responsibility when something doesn't go right. As we all know, the actors have very little control on a movie, so to give them too much blame or credit is not the way to go.
The only review of a show that matters is your own.