Complex sentence: In September 2008, Jerry Bruckheimer officially confirmed that they were in the process of developing a third film, and in November of that year, Bruckheimer said that the writers were in the process of writing the script to the film.
Split into simpler sentences: In September 2008, Jerry Bruckheimer officially confirmed that they were in the process of developing a third film. In November 2008, Bruckheimer said that the writers were in the process of writing the script to the film.