Good animation, bad humour
Ok, I'll pretend I'm you making the movie: "We'll start it out with a bird taking a crap, well we all know THAT'S funny. Then we'll have animals making stupid noises, because that's always been good on America's Funniest Home Videos. And then we'll have a monkey jerking off, because jerking off is soo funny, especially when an animal is doing it. Then we'll find a whole bunch of ways to say crazy while being incredibly annoying."
That's your entire movie, frankly I wonder about the shit that gets front page these days.