The way Billy Crystal raises his hand up when he humming the Godfather waltz, either he was really into it, or he must of been a fan of the movie... who isn't.
When Jon Lovitz’ voice cracks while they’re singing- absolute comic fucking genius. It was absolutely on purpose, but the subtly of it is the gut-punch. Goddamnit, that *HAD* to have been his idea/improv. And if I’m wrong, it only makes it funnier if it was unintentional. One of the funniest movies ever fuckin’ made. This shit is what they’re talking about when they say, “They don’t make’em like they used to…”