If a studio contemplates remaking a classic or cult movie of decades ago, by and large the reboot has to be superior and more compelling than the original. That truism evidently did not occur to the top brass at Columbia Pictures when they greenlit a reboot of 'Flatliners', Joel Schumacher’s 1990 horror movie which starred Julia Roberts, Kiefer Sutherland, Kevin Bacon, Oliver Platt and Billy Baldwin.