Like any movie in this specific subgenre, there are plenty of confusing time travel issues that occur throughout "Back to the Future." Some of them are pretty major — like how neither Lorraine (Lea Thompson) nor George (Crispin Glover) notice the fact that their son Marty (Michael J. Fox) looks an awful lot like the mysterious Calvin Klein who played such a prominent role in the start of their relationship. But there are a number of insignificant little nitpicks that don't hurt the movie's credibility too much, but have nonetheless been noticed by fans over the years.

One example is the specific model of guitar Marty plays during the school dance that serves as the climax of "Back to the Future." To the casual observer, it looked like the type of guitar that rock and roll pioneer Chuck Be

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