I don't think some of those in our (full) theater understood some of the more subtle jokes and references to some world events, because me and a couple I was with plus maybe a few others in the theater were the only ones who laughed at them.
I liked the religious group seeking drinking in a time of impending doom and the drunks seeking religion.
Also liked the "quiet" humor, such as "Dome Sweet Dome" turning into "Nome Sweet Nome" in Alaska.