Signature Entertainment are proud to present tense crime thriller The Gateway, starring Olivia Munn and Frank Grillo, out on digital 27th September and DVD 5th October. Drive meets Training Day. The Gateway is a gritty, slick and tense crime thriller starring Olivia Munn (The Predator), Shea Whigham (Joker), Bruce Dern (The Hateful Eight), Taryn Manning (Orange is the New Black), Keith…