Lilo and Stitch, written and directed by Chris Sanders, who also voiced Stitch. I hope he gets a good percent of the merch Disney sells.

I never saw these commercials way back when this movie came out, and just discovered them for the first time, and they each have one good laugh in them, so for those of you who also weren't watching tv back in 2002, enjoy! 

coincidentally, Disney is now revisiting this concept of Stitch crashing other movies, and making more merch, new stuff. https://www.shopdisney.com/stitch-crashes-disney-content