After some difficulties in pre-production, work is getting underway for Jurassic World, the fourth film in the Jurassic Park series. Director Colin Trevorrow tweeted last night that principle photography for the action flick will begin this April and — surprisingly — shooting will be done on film, not digital. Trevorrow says that both traditional 35mm film and large-format 65mm film will be used by cinematographer John Schwartzman (Armageddon, The Amazing Spiderman, Seabiscuit). Each frame is significantly larger than a traditional 35mm frame, making the film extremely sharp.