We threw out a whole script that was greenlit,” the filmmaker said, in a conversation that also touched on Blake Lively's wardrobe assists ("Such a fucking movie star") and studio distrust: "They never stop thinking you’re going to screw them.

That’s how we work. That’s how I’ve worked with every movie star ever,” Feig tells PEOPLE at the film’s premiere at SXSW

Paul Feig returns to SXSW for the third time Friday night. Following his previous premieres of "Bridesmaids" and "Spy” at the festival, the director will open this year's SXSW at the Paramount Theater in Austin with "Another Simple Favor,