4. The Terminator - The Terminator
Arnold Schwarzenegger deserves extra brownie points for appearing on both the list of iconic hero introductions and villain introductions, with a few more bonus points thrown in for playing pretty much the same character in both instances. Before he went on to protect John Connor in Terminator 2: Judgement Day he tried to kill his mother in the original movie. Appearing from the midst of a lightning flash orb in a deserted alleyway, the T-800's naked body rising from a crouching position kickstarted a franchise which keeps on going to this day. Whether or not Terminator: Genisys will live up to the quality of the first two (and only really good) Terminator movies remains to be seen - it's clear from the trailer that elements of the first movie will be revisited, but there's a lot to live up to if they hope to beat the original iconic moment.