Complex sentence: David DePatie worked with Friz Freleng to create the animated character known as the Pink Panther, originally created for the opening tiles of the 1964 live action film "The Pink Panther", starring Peter Sellers.
Split into simpler sentences: David DePatie worked with Friz Freleng to create the animated character known as the Pink Panther. Which was originally created for the opening tiles of the 1964 live action film "The Pink Panther", starring Peter Sellers.