Not a sequel and not quite a reboot, but rather a recharge of the whole series. If you are familiar with the mythology, "Genisys" will blow your mind. If you don't know the story, rent the original before you go or you may have a hard time keeping up.
This is a perfect film for IMAX 3-D as the visual and sound effects will knock you right out of your seat. There are terrific action sequences throughout the film and plenty of surprises that I don't intend to spoil. Needless to say, this installment is a game changer.
Arnold Schwarzenegger is terrific, reprising his role as the original Terminator. It's as if he never left. He can still handle the action and adds a great deal of humor throughout the film. Sarah Connor is played by Emilia Clarke and who better than "the Khaleesi" of "Game of Thrones" to tackle the role. Kyle Reese is played by Jai Courtney in his biggest part to date and he does an admirable job in this major role. John Connor, the other main character in the series is played this time by Jason Clarke, who is becoming the "go to" actor for sci-fi reboots ( see Dawn of the Planet of the Apes).
Credit writers Patrick Lussier and Laeta Kalogridis for a script that is familiar and yet, turns the whole Terminator mythology on it's head. It is a very welcome addition to the series.