If something's not listed, but should be, like the montage of Axel Foley arriving in Beverly Hills (in, surprise, Beverly Hills Cop), it's because I couldn't find a clip of it on YouTube to embed. I'm sure I just missed some too, hence the "other" option being available... Enjoy.
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Bill & Ted's Excellent Adventure (At the Mall)
The Breakfast Club (Library Dancing)
Ferris Bueller's Day Off (Parade Song and Dance)
(this one isn't technically a montage, really, but it's close enough and pretty iconic)
Ghostbusters (Business is Booming)
The Goonies (Escape from Mikey's House)
The Monster Squad (Monster Hunting Preparation)
(in case you're wondering what the photo is, Frankenstein's monster accidentally snapped a picture of "the hot chick" next door undressing)
Rocky IV (Hearts on Fire Montage)
Teen Wolf (Everyone Knows Now)
(starts at about 3m15s into the video)
The Wizard (Cheesy Training for Nintendo World Championships)
"message parlor" ? do you mean the post office ?
- SlayerX888