Who produced the movie in which Wallace Shawn voiced Rex?
Wallace Shawn:  His film roles have included those of Wally Shawn in the Louis Malle-directed comedy-drama "My Dinner with Andre" (1981), Vizzini in "The Princess Bride" (1987), Ezra in "The Haunted Mansion", providing the voice of Rex in the "Toy Story" franchise, providing the voice of Gilbert Huph in "The Incredibles" (2004), and providing the voice of Calico in "" (2010). Toy Story (franchise): Toy Story is a computer animated film series and Disney media franchise that began with the original 1995 film, "Toy Story", produced by Pixar Animation Studios and released by Walt Disney Pictures.
Pixar Animation Studios