Complex sentence: Bay began creating animatics of action sequences featuring characters rejected for the 2007 film; this would allow animators to complete sequences if the Directors Guild of America went on strike in July 2008, which ultimately did not happen.
Split into simpler sentences: Bay began creating animatics of action sequences featuring characters rejected for the 2007 film. This would allow animators to complete sequences if the Directors Guild of America went on strike in July 2008, which ultimately did not happen.