Finish the previous cliche, then provide the beginning for the next player. I’ll start.
Whenever a character is packing, he either just throws things in a suitcase to show that he’s in a big hurry, or is extremely calm and methodical, to show that he’s anal retentive. He is never between these two extremes.
Your turn:
A hero who walks away from an explosion or a big fire never…
…looks back.
Conversely, when a hero is running from a big explosion and oh my god BOOM! : …
…Then he jumps forward, maybe even through window glass, then fall a couple of storey down, having his fall break by garbage bags.
The Laws of Swords in movies. Name three, complete with examples.
Swords, no matter what kind, beat out guns or any other projectile weapon (see Star Wars)
Throwing your sword ALWAYS works (unless it’s completely important to the plot it doesn’t, surprise!)
Done by Will Turner in Pirates of the Caribbean. Twice.
When charging during a climactic battle you MUST at least once, drag the tip of the sword on the ground for no discernible reason.
Yup, Star Wars again, though this time in the Clone Wars movie.
Curses, you have foiled my plans, killed my henchmen, and nearly defeated me. Against all logic (which is somewhat ironic, what with me being a genius and all) I now must…
[[ETA: Out of wonder, are we talking film specifically or are we taking a more TV Tropes approach and doing video game/TV/Movie/stage etc cliches across the board?]]
… adopt a way of killing you which takes a long time and is completely unsupervised!
Our hero really likes a girl, so he …
…is instrumental in having her bar in Nepal burned down
Just as the timer on the bomb reaches 0.001…
(jjim, see Raiders of the Lost Ark.)
IT STOPS!
Every time a character goes grocery-shopping in the movies, he buys . . .
… celery. At least it seems so when you see him carrying the (paper) bag of groceries home.
If the phone rings while the protagonist and his/her love interest are in an intimate moment, …
… it’s never an automated campaign call, dentist appointment reminder or your best girlfriend just calling to bitch about the latest dumbass thing her husband did. No, it’s someone with Crucial Plot Information, which requires the panting pair to immediately uncouple, rise as one (the woman, with the sheet expertly tied above her breasts [when did the sheets get untucked?]) and spring into ACTION.
Explain the Law of Machine Gun Spray, as it applies to action heroes.
The guns never run out of ammunition (unless one is pointed point-blank at the hero)
Nobody is ever actually hit by the thousands of projectiles.
Every wall, door, car or truck will be riddled with bullet holes in neat lines.
When you see a couple of men in suits sitting in a car, they …
…will speak extremely tersely, and are up to no good.
(Jragon, to answer your question, this is movie cliches only, per the OP).
When a character who’s in trouble happens to see the TV news, he will invariably…
…see himself listed as Most Wanted
When the heroine walks down the cellar steps ,the lightbulb…
…swings lazily along its arc, casting ominous shadows and concealing as much as it illuminates.
When the protagonist is racing through the airport to catch his flight…
He must carry his boarding pass in his teeth, while struggling with his awkward carry on luggage.
When the hero gets punched very hard anywhere in the face …
…he’ll still look fine. Well, maybe a little blood, just below the lip. But no bleeding gums or unsightly bruising.
When the hero disables the nuke using his underwear and a bracelet some close friend/lover/family member gave him at the movie’s start, the villain is unworried because his backup plan involves…
…more cowbell!
He’ll take the punch with his back to the camera but the punch will spin him around so he ends up looking into the camera from about 2 feet away so you get a nice close-up of his reaction to it.
Whenever a new teacher inspires kids to think for themselves the administration will inevitably…
…acts on some inane complaints from parents that the teacher is inspiring kids to rebel against authority, and coincidentally at the same time, the teacher will unintentionally, immediatelly reveal a Deep and Dark Secret™, such as…
he was a former gang member himself.
When the red phone rings in the Oval Office, the President always…