7. Monty Python and the Holy Grail
Oh my God, just stop. If you're even thinking of quoting this movie just stop right now and go stand in the naughty corner. Yes, Monty Python and the Holy Grail is a hilarious movie. Yes, we've all seen it. No, it somehow isn't quite as funny coming out of your mouth. Pretty much any line from this film qualifies, because more or less every single scene has been broken down and requoted by people who think they're special and cool for having seen one of the most popular comedy films in the history of time. Also, not to bring nationality into this, but you especially shouldn't quote Monty Python if you're American. Because you just sound ridiculous. And I say this as an American.