Pitch Black director David Twohy says it would have been a “fate worse than death” if he had been forced to cast Steven Seagal as the lead in the movie instead of Vin Diesel.Twohy told Yahoo Movies UK the studio were keen to hire the action man for the ambitious sci-fi story, but the director fought to bring in someone else instead.“I fought hammer and tongs to make that not happen, even though somebody along the line had promised [Seagal] the role,” the 64-year-old said.He added: “I had to