Complex sentence: Leaving for the MGM studio were Kenneth Muse, Ray Patterson, Preston Blair, Ed Love, Walter Clinton, Grant Simmons, and Jack Bradbury (Bradbury would return many years later).
Split into simpler sentences: Leaving for the MGM studio were Kenneth Muse, Ray Patterson, Preston Blair, Ed Love, Walter Clinton and Grant Simmons. Departing for and Jack Bradbury (Bradbury would return many years later).