Final Destination turns 20 this month, officially making it older than most of the characters that get spectacularly killed off in the bloody horror franchise. While there hasn’t been a new installment since 2011’s Final Destination 5, it was announced last year that a sixth movie was in the works from Patrick Melton and Marcus Dunstan, the writers behind The Collector series and Saw IV, V, VI and Saw 3D. In an interview with Digital Spy, Final Destination producer Craig Perry shed some light on the upcoming film, including plot details and a potential set piece. "We're …