August 15, 2012 at 08:34 PM EDT

We already know that in Pixar’s new Toy Story spin-off animated short Partysaurus Rex — which will play in front of Finding Nemo 3-D on Sept. 14 — the neurotic dino Rex becomes a party animal when his new owner Bonnie brings him to her bath time. Rex learns that all the armless bath toys are left motionless when there’s no water, and in this new clip from the short, we see him step in to save the day. Check it out below: 

Follow @adambvary

Read more:

FIRST LOOK: Pixar dives deep in new bath time ‘Toy Story’ short — EXCLUSIVE

This adorable working Wall-E replica, and its creator, are our new heroes

‘Monsters University’ debuts four new trailers — each with a slight mutation — VIDEO

You May Like