That reminds me of a joke I made today. Somebody was talking about some fourth film in a film series (can't remember the film now, maybe Batman) and I asked if they were going to call it "Citizens on Patrol". He didn't think that was funny, even after I explained it was a Police Academy reference. I tried again a few minutes later with another film which could go all the way up to seven (and beyond), and I said "Mission to Moscow?". He got the reference, but didn't think it was funny. I still think it's funny.
I want to watch the Police Academy films again, but I'm worried I'd hate them.