Beginning of 'Power of Love' Theme.
Mr Strickland : You've got a real attitude problem McFly, you're a slacker!
Biff Tannen : What are you looking at butthead?
Doctor Emmett Brown : If my calculations are correct, when this baby hits 88 mph, you're gonna see some serious shit!
Biff Tannen : Hello? Hello? Anybody home? Han? Hey, Think McFly, think!
Doctor Emmett Brown : But I need a nuclear reaction to generate the 1.21 gigawatts of electricity I need!
Marty McFly : Holly shit! Let's see if you bastards can do 90!