"All right. I’ll tell you what I’m going to do. I’ll pick something completely weird and ridiculous for the very reason that I just said, and that would be Ace Ventura: When Nature Calls, specifically for the scene in which Jim Carrey births himself from the anus of a fake rhino, because it is one of the single most genius pieces of comedic writing that will never be given its due because it’s part of a ridiculous, vaguely racist, silly comedy.
The setup for that whole sequence is incredible from the point you see him. He’s inside this rhino, which he’s using as a sort of eavesdropping device, and it’s so meticulously done. There’s a fan inside because it’s hot. The fan breaks, so he has to undress. All to get to this point where he literally squeezes his way out of the behind of this rhino in front of a family of tourists who just effectively see a rhino giving birth to a screaming, naked human being.
The industry involved in setting that joke up, the way that it just creeps up on you, like you’ll think, “Oh, it’s funny because he’s inside a rhino. It’s funny because it’s hot. It’s funny because he’s taking off his underwear.” And then suddenly, you realize, “Oh, wait a minute, this was a long game they were playing here. This is a buildup.” And it snuck up on you. And suddenly he starts to, as only he can, emerge from the back of this rhino, and then this family pulls up, and it’s just brilliant. I think that sequence should be celebrated in no uncertain terms because it is just a genius piece of comedy executed with the extraordinary aplomb that that man is capable of displaying."
Source