7. I Will Not Leak The Plot Of The Movie (Season 17, Episode 20 - Regarding Margie)
This gag feels like it came a little prematurely considering that it aired on May 7, 2006, a whole 14 and a half months before The Simpsons Movie even hit cinemas. Wouldn't it have made more sense to use this chalkboard gag for the finale of the 18th season, which aired just 2 months before the movie came out? It's a funny gag nonetheless, but would have benefited from more considered timing for sure.