He is the screenwriter of All Dogs Go to Heaven and Rock-a-Doodle and co-writer of The Rugrats Movie, Shrek 2, Clockstoppers, Jimmy Neutron: Boy Genius, Rugrats in Paris: The Movie, The Smurfs, its sequel and Disenchanted with writing partner, J. David Stem.
He reverted back to Judaism in adulthood after meeting observant Jews while in Ireland.
[1] In 2009, after serving two terms as vice president, Weiss was elected secretary-treasurer of the Writers Guild of America, West.
[6] Weiss has also written three books for children, including Kay Thompson's bestseller, Eloise in Hollywood (with Stem, for Simon & Schuster).
[7] He has taught at the Ma'aleh School of Television, Film and the Arts in Jerusalem, Israel.