The final installment in the venerable, seemingly never-ending Shrek franchise is coming this May, in which we find our friend Shrek trapped in a world in which he never existed, thanks to the tricksy Rumplestiltskin. In the new trailer, which debuted today at Yahoo! Movies, we get a good sense of just how different this world is. Fiona is leading a hard-charging army, Rumplestiltskin has made himself king of the land, and Donkey-- well, Donkey is pretty much the same. You wouldn't expect them to mess with a good thing, would you?

You can check out the new trailer, which still fails to give any truly good reason for this movie to exist, below. Shrek Forever After opens May 21 this year.

Watch in glorious HD at Yahoo! Movies