I rewatch many movies quite often. But the ones that really stand out, in no particular order...

  Wargames
  Jurassic Park 
  Evolution 
  Unstoppable 
  Lord of the Rings
  Die Hard 1, 2 and 3
  Alien 1, 2 and 3
  Back to the Future
  Ghost in the Shell (basically all of it, mostly seasons 1 and 2)
  The Martian
  Tron 1 and 2
  Anything by Miyazaki, but Howl's Moving Castle even more so