Ya know what always bugged me about Ferris Bueller’s Day Off? In the first reel, Cameron is bedridden with a severe flu and within five minutes, he’s up and dressed and even spry. Punching the passenger seat with indecision, jumping up and down by the rear bumper, throwing things... After that, his illness is never mentioned again. It’s like he was never sick to begin with.
I know John Hughes wrote screenplays on the fly, most of them over the course of a weekend. In this case, it seems like while in the process, he thought, “Wait, hang on a second... My protagonist is faking an illness to stay home from school. His best friend is staying home from school on the very same day because he actually is ill. That migt be a little too coincidental. Too much sickness for one movie. Maybe I’ll nix the 'Cameron being sick' subplot.” But then he forgot he’d changed his mind, shot the scenes of Cameron buried under the covers with a pharmacy by his bedside, realized his mistake, and just left it in anyway. I could be mistaken, but there might be a line about Cameron being something of a hypochondriac. Even if that were the case, it’s still a pretty big plothole.
I love the movie, but this has always driven me insane. Anyone else? Anyone?