I discuss the possible reasons they didn't include this -- including that they probably tested the movie with it, but whatever the reasons, whatever the test results, ultimately it's still a stupid decision, because as creative talents at a certain point you have to say, "This is a musical comedy and we NEED the opening number."
It occurred to me that though I posted the song in a live-onstage version, I never posted the number that they actually filmed but didn't use.
Here it is. The number that they regularly used in order to promote the stage musical when guesting on TV talk shows, but cut from the movie version --