I Didn't Know There Was This Much Green in the Whole Galaxy is a video remix format built around a short line of dialogue from Star Wars: The Force Awakens, in which the desert-raised Rey reacts to seeing the forest planet Takodana for the first time2. The joke lives in the punchline swap: editors keep Rey's awed delivery intact and replace whatever she is supposed to be looking at, so the word green ends up pointing at something completely different1.

Most entries in the format play on double meanings of green, from literal green screens exposing how the shot was filmed, to weed, to piles of cash, to whatever the editor finds funny that week1. The template works because Rey's expression is sincere and cinematic, which makes the payoff land harder when the reveal is stupid3.

The format typically keeps Rey's line and reaction shot untouched and only replaces the reverse angle. Common conventions include cutting to a literal green screen, a stack of dollar bills, a marijuana reference, or any absurd visual that can be labeled green, so the humor comes from how far the reveal drifts from Takodana's forests.