Original sentence: Although based on the movie Stargate, the television series Stargate SG-1 utilizes a different canon.Through official production notes, scripts, and subsequent text and graphic novel series, Roland Emmerich and Dean Devlin created a rich backstory and universe.When MGM decided to make a TV version, new creators Brad Wright and Jonathan Glassner introduced many new concepts, changing many aspects of the film's backstory for the TV version
Edited sentence: Although the original Stargate film possessed a rich backstory and universe (created and developed through official production notes, scripts, and a subsequent novel and graphic novel series), it was largely ignored and disregarded when MGM, which owned the rights, took Roland Emmerich and Dean Devlin's product and handed the reins to a new team of creators (Brad Wright and Jonathan Glassner) for the television series Stargate SG-1.There are some differences between the film and the TV series, and some canon facts from the film were simply ignored by the TV series.This new team introduced many new concepts and changed many aspects of the film's backstory