Complex sentence: According to Katzenberg, the idea for "Antz" came from a 1991 story pitch by Tim Johnson that was related to Katzenberg in October 1994, Despite the fact that Disney had been working on developing an ant movie since 1988.
Split into simpler sentences: According to Katzenberg, the idea for "Antz" came from a 1991 story pitch by Tim Johnson that was related to Katzenberg in October 1994. However, Disney had been working on developing an ant movie since 1988.