Ones I hate the most:
*The almighty power of hacking:
"Johnny, Hack into..."
"James, hack this..."
"Wait while I hack this"
etc.
*When someone is searching for files on a computer, and the screen shows EVERY SINGLE IMAGE ON THE COMPUTER, just overlaying them on top of each other, and making little beeps and clicks.
*In Will Smith movies: "Aww, HELL no"
*When a main character dies and just a few minutes later the characters find out there's a way to bring him/her back to life.
*Faux or misused computer jargon, like mainframe, subroutines, and encryption
*Aliens are always humanoid, or at least have the same relative placement of facial features (eyes above mouth and nose, nose between eyes and mouth, ears on side of head)
*Monstrous bad guys, usually in slasher flicks, walk very slowly, but teleport to appear around corners. Excusable during dreams in A Nightmare on Elm Street, not so much in Halloween or Friday the 13th.
*Lasers are apparently visible no matter where they are. Smoke, plain air, even space.
*****ING SOUND IN MOTHER ****ING SPACE
That's all I feel like listing right now.