F. Gary Gray to direct Vin Diesel in action comedy Muscle The Fate of the Furious star Vin Diesel for the action-comedy Muscle. “There are few directors who can match Gary’s skill with character, comedy, and big action, which is why he is one of the most accomplished and in-demand directors working today,” said Adam Fogelson, chairman, STXfilms. “Over the years, Vin and I have worked together on a number of hit movies and it’s a thrill to reteam Vin and Gary after their billion-dollar success on The Fate of the Furious . This will become one of the most eagerly anticipated films on our slate.”