Back to the Future or Forrest Gump?

Are you a fan of Forrest Gump? Of Back to the Future as well? Prove it! Select which quote belongs to which movie and see how good you are:

- 1.21 gigawatts! 1.21 gigawatts. Great Scott!

- What-what the hell is a gigawatt?

- We better back up. We don't have enough road to get up to 88.

- Roads? Where we're going, we don't need roads.

Stupid is as stupid does.

Mama always said, dying was a part of life. I sure wish it wasn't.

My momma always said, "Life was like a box of chocolates. You never know what you're gonna get."

If my calculations are correct, when this baby hits 88 miles per hour... you're gonna see some serious shit.