Khan shot first

ST III: The Search for Gonzo

Everybody’s faces are replaced with the faces of the actors from the J. J. Abrams films

One tribble is added to every single scene aboard the Enterprise. They do nothing. They are simply there. Occasionally one rolls across the background during a tense dialogue exchange.

Why just the TOS movies? Why not take the piss outta the TNG movies as well? I'll start.

Insurrection, but with Riker playing Descent on the bridge viewscreen with that joystick that can pop outta the floor.

Star Trek VI: Undiscovered Country

But all the set redress shots are redone with CGI. That way the President's office doesn't look like Ten-Forward with a curtain, and Main engineering looks more period accurate.

Add Korean romance series visual effects and soundtrack for Spock's death scene.