Mortal Kombat: Annihilation
The final combat sequence, when Shao Khan is shocked that he is bleeding, and he looks to his father in confusion, asking "How can this be?!?"
And his father says "I told you there would be consequences for breaking the sacred rules!"
Then the other Elder Gods fly in and imprison him in magic, and then say in a deep, resonant voice.
"In the end, it shall be decided as it always has been, in...*cue the awesome theme music* MORTAL KOMBAAAAT!" *cue dance beat and ass kicking*
Loved that bit. Because it reinforced the Earth Realm's mandate, which is to take Earth Realm, you do it by Earth Realm's rules.
Also, now that I think about it, the first Mortal Kombat movie, all the scenes with Raiden, as he is trying to explain to the combatants that the Mortal Kombat tournament is a level playing field. That no matter who the crazy mystic being is that tries to take the Earth Realm, he has to do it on Earth Realm's rules which means a mortal fight to the death.
Also when they have that 3 way fight with the mooks, and are talking after the fight, and Johnny Cage says "Look, we're standing...they're not...what more do you want?" And Raiden does the slow clap, and says "Brilliant! Absolutely brilliant." At first glance, it comes across as him being sarcastic, or condescending, but over time, I think he was being absolutely sincere. He was trying to get the point across to them, what the fight was, and Johnny was the one who got it. You fight, one wins, one loses. The other's didn't really understand that, but Johnny did, and he was proud of him for it. I always enjoyed that bit