When it comes to ranking the most important TV shows of all time, The Simpsons must surely be up there. Not only is it the longest-running sitcom in American history – animated or otherwise – it’s also racked up dozens of awards and left an unparalleled imprint on Western pop culture.

It’s no surprise, then, that when Homer, Marge, Bart, Lisa, and Maggie – along with the rest of the town of Springfield – made the leap to the big screen back in 2007, the end result was a commercial and (mostly) critical success. By the time it had finished its theatrical run, The Simpsons Movie had amassed $527,068,706 in box office sales, and several award nods – including a Golden Globe nomination for Best Animated Feature Film.

As you might expect with a film so long in the making – it spent nine years in development – based around such an influential TV series, The Simpsons Movie boasts some pretty interesting trivia. In honor of this flick’s 10th anniversary, we’ve filtered through the many fascinating factoids available, compiling the best in this list of 15 Things You Never Knew About The Simpsons Movie.

15. “Kamp Krusty” Nearly Became The Simpsons Movie

Kamp Krusty 15 Things You Never Knew About The Simpsons Movie

Season 4 episode “Kamp Krusty” – which features Bart and Lisa attending a dreadful summer camp run by Krusty the Clown – is rightly considered a classic. But did you know its plot almost served as the basis for The Simpsons Movie?

When “Kamp Krusty” was completed, Executive Producer James L. Brooks became convinced that the episode should be re-worked into a feature-length story. While attempts were made to transform “Kamp Krusty” into The Simpsons Movie, there were several creative and logistical roadblocks that ultimately made this an impossibility.

For starters, the original script already ran short, and efforts to expand the narrative proved fruitless. Then there was the little matter of the position of “Kamp Krusty” within the season’s broadcast schedule – if it were to be shelved in order to accommodate plans for a big screen version, the producers would have had to scramble to replace their premiere episode!

14. Russ Cargill Was Originally Supposed To Be Hank Scorpio

Scorpio Hank 15 Things You Never Knew About The Simpsons Movie

In The Simpsons Movie, everyone’s favourite four-fingered family find themselves pitted against a new enemy: Russ Cargill, the head of the Environmental Protection Agency. What fans might not know is that Cargill’s role was initially going to be filled by a familiar face – supervillain (and Homer’s former boss) Hank Scorpio!

A fan favorite since his appearance in season 8 episode “You Only Move Twice”, Scorpio is an evil genius in the “Bond villain” mould; somewhat paradoxically, he’s also a friendly and considerate employer. Given his status as a supervillain, it makes sense that the head of the Globex corporation would be considered for the antagonist role in The Simpsons Movie.

Although the movie’s producers claimed these plans didn’t last longer than “around a week”, things did get serious enough that Scorpio’s voice actor, Al Brooks, was signed on to appear in the film. When the decision was made to axe Scorpio from the script, Brooks – widely considered one of the finest guest performers to ever grace The Simpsons – was retained, playing Cargill instead.