The “Imaginationland Trilogy” is a set of three episodes that aired in 2007, but “Imaginationland” was originally envisioned as a feature-length film. Speaking with the AV Club about the nascent movie, Matt Stone said, “We talked about it, and it just didn’t feel right. It didn’t feel big enough. It felt somewhat derivative of all the other imaginary characters. And also, more than anything, we have to make 14 episodes a year, and that’s our hungry baby that has to be fed, so that was part of the decision.”
“Imaginationland” features a plot that sees the “South Park” boys whisked away to the titular Imaginationland, a mystical dimension populated by pop culture creations like Wonder Woman, Luke Skywalker, and Santa Claus. However, terrorists are able to infiltrate this land of make-believe and use the breach to denote an explosive that destroys the wall that separates the good characters from the bad characters. This results in an epic battle and several insane subplots regarding bets, man-bear-pig hybrids, and whether or not leprechauns are real. “Imaginationland” was later collected into an uncensored director’s cut DVD (via IGN), and the three-part series went on to win an Emmy for “Outstanding Animated Program (One Hour or More)” in 2008.