By coincidence I saw the first BTTF yesterday on TV. It really is a fun movie, maybe because I was Marty's age in 1985 as well.
Anyway, I noticed that Doc's DeLorean had 31,000 miles on it and thought "There were DeLoreans that actually made it to 31,000 miles?"
Oh, and what happened to the DeLorean time machine that conked out in the middle of Main Street in 1985, at the end of the movie? Was it towed somewhere? Time-travel logic, it never works.
And speaking of timeless, it's funny how "terrorists from Libya" are still a consistent real-life villain, even 30 years after the movie.