TG: OK, no one looks forward to a Michael Bay film. But say it has the ever-fascinating and sometimes luminous Mark Wahlberg? Transformers 4 is definitely happening. Filming will commence in the spring, ahead of a 2014 release. The story will be set four years after the events of Transformers 3. Michael Bay is back in the director's chair. Instead of Shia LaBeouf, the film will star Mark Wahlberg. And I'm already a little bit excited about it.