Tardy slip for you, Miss Parker. And one for you, McFly. I believe that makes four in a row. Now let me give you a nickel's worth of free advice, young man. This so-called Dr. Brown is dangerous, he's a real nutcase. You hang around with him, you're gonna end up in big trouble.

Mr. Strickland

Unrated

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Movie:
Back to the Future
Genre:
Sci-Fi
Franchise:
Back to the Future Movies
Related Quotes:
Back to the Future Quotes, Sci-Fi Quotes, Back to the Future Movies Quotes
Added:

Back to the Future Quotes

[Marty places headphones over his father's ears and wakes him up by playing Van Halen music at full blast. George wakes up screaming - Marty pauses the music. George looks up to see Marty, who is unrecognizable because he is wearing a radiation suit]
George McFly: Who are you?
Marty McFly: [after giving him another earful of loud rock music] Silence Earthling! My name is Darth Vader. I am an extraterrestrial from the planet Vulcan!
[makes Live Long and Prosper sign with his hand]

Younger Dr. Emmett Brown: [running out of the room] 1.21 gigawatts? 1.21 gigawatts? Great Scott!
Marty McFly: [following] What-what the hell is a gigawatt?