While many Superman fans are excited about David Corenswet taking over the character in James Gunn's DCU, and some are still upset that Henry Cavill got the boot, most fans of the Man of Steel agree that the most iconic portrayal of the character is Christopher Reeve's. His Superman from 1978 is widely considered the first great superhero movie, and one of the first to take the subject seriously, with big actors and a big budget.