DUBAI: Not much happens — on screen at least — in director Clint Bentley’s elegiac “Train Dreams.” The film is based on Denis Johnson’s 2011 novella and tells the story of the 80-year-long life of Robert Grainier (Joel Edgerton). Grainier was orphaned young, dropped out of school early and spent his teenage years drifting somewhat aimlessly. Then he meets Gladys Olding (Felicity Jones). They fall in love, marry, build themselves a log cabin near Idaho’s Moyie River, and have a daughter, Kate.