Flatliners Theatrical release poster Directed by Niels Arden Oplev Produced by Laurence Mark[1] Michael Douglas[1] Peter Safran[1] Written by Ben Ripley Based on Flatliners by Peter Filardi Starring Ellen Page Diego Luna Nina Dobrev James Norton Kiersey Clemons Music by Nathan Barr[2] Cinematography Eric Kress Edited by Tom Elkins Production company Columbia Pictures[3] Further Films[3] Laurence Mark Productions[3] Cross Creek Pictures[3] Distributed by Sony Pictures Release date September 29, 2017 (2017-09-29) (United States) Running time 110 minutes[4] Country United States Language English Budget $19 million[5]