"Partysaurus Rex," the third installment to the Toy Story short films, premiered recently in front of the 3D re-release of "Finding Nemo."

Directed by Mark Walsh, “Partysaurus Rex” involves Rex getting left out in the bathroom and making friends with bath toys.

Here is the plot of the short film:

When Rex finds himself left behind in the bathroom, he puts his limbs to use by getting a bath going for a bunch of new toy friends. They begin to have a party until the tub is too full and Rex constantly tries to stop the party, which made a mess. At the end, Rex meets a Jamaican toy and creates another party, and he then joins the other inflatable toys.

“Partysaurus Rex” premiered with the 3D theatrical re-release of “Finding Nemo.” It had its television premiere on October 8, 2012, on the Disney Channel.

Watch the video here: