Perhaps in an effort to dissuade people from using outlawed (at least for this game) game trainers, Starcraft II developers Blizzard have publicly revealed every single singleplayer cheat for the game. And they're good for a chuckle.
The team's fascination with Conan continues through to the game's cheat codes, with "WhatIsBestInLife" bringing the player instant victory. "HanShotFirst" will disable the cooldown effect on special attacks. "WhoRunBartertown", from the third Mad Max movie, will give you 5000 of each resource, while "LetsJustBugOutAndCallItEven", from Aliens, will bring about instant defeat.
There are also cheats based on The Matrix, Iron Man, District 9, Galaxy Quest and even Battlestar Galactica, which while not a movie, is close enough, because it has spaceships in it.
You can find the complete list of cheats at the link below.
It's Official: StarCraft II Cheat Codes [Blizzard]