(IFC Films)Steven Soderbergh’s four-hour epic treatment of Che Guevara (played by Benicio Del Toro) opens Friday at the Varsity. (Our review here.) Among the credited screenwriters is Peter Buchman, once a playwright here in town associated with the old Annex Theatre during the ’90s. After a script collaboration with part-time local screenwriter Chris McQuarrie (The Usual Suspects), Buchman left town and began getting work in Hollywood, including Jurassic Park III. (Also Eragon, ugh.)His stage productions here included Airsick (1995) and Zero G (1997). Neither of which, unfortunately, featured dinosaurs or Catalina Sandino Moreno (pictured above with Del Toro).