re: Ice Age: The Dawn of the Dinosaurs (2009)
I was all ready to get incredibly angry at this blatant disregard for the chronological order of things (and I really get angry whenever dinosaurs appear where they shouldn't -- except for Jurassic Park, which is just kick-ass). But it seems there is some kind of reason for dinosaurs popping up at this time. I think something along the lines of being trapped in ice and then defrosted (a la the plot of the first film).
OK, just looked on that god of websites, Wikipedia. Turns out it's a tropical paradise full of dinosaurs and other reptiles beneath the layers of ice (as you do...) And Simon Pegg voices one of the characters! He's a one-eyed dinosaur hunting weasel. Ooh, and there's a Baryonyx in the film...nice.