I saw Spamalot 3 times: pre-Broadway, on Broadway, and a recent Chicago production. It was very funny, and the original cast was excellent. However, the score (at best) is just serviceable, not particularly distinguished. Generally a movie version of a Broadway musical has to have a really great score in order to attract a mass audience of fans other than theatre devotees. But you never know, maybe Nicholaw will come up with a sleeper success. We'll have to wait and see.