Transformers: Dark of the Moon
Transformers: Dark of the Moon (made by that other master of disaster, Michael Bay), introduces a brand-new moon conspiracy theory, which asserts that while the 1969 moon landing was real, its true purpose was to investigate a crash-landed Cybertronian spaceship. The remains of that spaceship cause all manner of shenanigans in the ongoing war between the Decepticons and Autobots, though most puny humans with any knowledge of the situation are murdered before they can get the word out. That’s what passes for set-up here; the rest of the movie is basically just giant robot fights.