@Dustcan
Not to go all “UUUMMM AKSHEWALLY” on you but…
UUUMMM AKSHEWALLY
There was a story in the first 3 games, but they were just the basic overview (like the tournament, character motivations, then Shao Khan going “fuck it” and just invading Earthrealm anyway in MK 2), but the movie did expand more on the lore of the game and gave stuff that would become kanon in game (Raiden going from a jerk to being the one wanting to protect Earthrealm and being Liu Kangs mentor/father figure, the relationship between Sonya and Cage, who the main protesters are ect)
Also game Kano was actually supposed to be Japanese-American in his early appearances and more serious, not British. Then the movie came out and he became a massive Aussie slimeball (he was actually being played by a British man doing an Australian accent, that might have been the part you were confused by) , and he proved to be so popular with both fans and Ed Boon that they retconned his origin to be more like the movie version