While at the school dance where Marty plays the guitar, they cut to an overhead shot of the gym floor (to show the people dancing) and you can see a three point line arc on the basketball court. The three point shot did not enter any level of basketball, or was even invented for years later. They forgot to modify the gym floor.
Great spot i not knowing anything about basketball consulted the NCAA about this and this is a quote "The men's game added the three-point line in 1986-87; the women's game added the shot in 1987-88." Great spot but a question now comes up if they added it in 1986 how did this film made in 1985 have it(dont argue it was released in 1985)???? but i assume that a Schools Gym whould follow the NCAA rules since the NCAA being the Collage and univeristy teams mostly.please some 1 help me understand this
Good catch. As for why the 3-pt line would exist prior to 1985, I believe that it existed unofficially for several years prior to that but the NCAA (and later the NBA) did not adopt the official rule until the '85-'86 season. But now there's another thing wrong with that court: the lane was only 6 feet wide in 1955. It was widened to 12 feet in the '56-'57 season.
I checked and didn't see the 3-point line. I saw the mid court circle, the and the top of the key. From the top of the key, I didn't see the 3-point line. Maybe I missed it, but I didn't see anything.