Former Blockbusters That Didn't Age Well

Guarini has said it was the worst thing he ever did. Clarkson doesn't talk about it. Yet, people love it, because it's so, so bad.

Arnold Schwarzenegger practiced with guns every day for a month to prepare for The Terminator.
In Iron Man/Avengers, J.A.R.V.I.S is an acronym for “Just A Rather Very Intelligent System.”
In the movie 'The Hangover', no effects or prosthetics were created for Stu's missing tooth. Actor Ed Helms never had an adult incisor grow, and his fake incisor was taken out for the parts of filming where Stu's tooth is missing.
In the first draft of the Back to the Future screenplay, the time machine wasn't a Delorean, it was a refrigerator.