The other day, the first couple of images from the Toy Story short Partysaurus Rex popped up online, and now Pixar has released a clip from the toon. Toy Story: Partysaurus Rex will debut in the US in front of Finding Nemo 3D on September 14th (it reached the UK on October 10th). Here's the synopsis: 'Poor Rex. Buzz, Woody and the rest of the Toy Story gang think he is a just a wet blanket. But when Bonnie takes him to bath time, he goes from a party pooper to king of the hot tub! Creating a bubble bash like no other, everyone's raving about the Partysaurus Rex!'