"Only if it turns out that reality is actually nothing more than a holographic illusion created by the interplay of subatomic particles on a vast two-dimensional membrane."
This article covers a subject that has been deemed non-canon by either the author or the Back to the Future licensees, and thus should not be taken as a part of the "real" Back to the Future universe.
The Hill Valley Theatre was a movie theater in Hill Valley, California.
By the 1980s, the Essex Theater was turned into an adult movie house that was open 24 hours a day. The Hill Valley Theatre, on the other hand, showed films to general audiences during this period.
In 1984, Marty McFly and Jennifer Parker saw a Clint Eastwood film on their first date. In 1992, the Hill Valley Theatre was showing Back to the Future.