Another game changer of the sci-fi genre. T2: Judgement Day, directed by James Cameron flipped the genre on it's head with his extensive use and integration of CGI which at the time blew minds, particularly the liquid morphing effect of the T-1000. Arnold Schwarzenegger was at his prime delivering classic lines and action sequences. All that alone would have made for a great movie, but the story actually really worked and not only gave more credit to the B-Movie style of the original Terminator but successfully tackled time travel, which is a tough concept to pull off. Classic, game changer and a must see.