Well, the first BACK TO THE FUTURE I think had a nice premise, and its pretty good. The sequels are decent fodder, though #2 had an interesting idea that comes up with mixed results, and #3, Zemeckis and producer/co-writer Gale obviously had fun with their jokes/homages to western pictures from Eastwood, Leone, Peckinpah, Wayne, all that stuff.

If you want to blame a franchise for encouraging THE MATRIX and PIRATES OF THE CARIBBEAN (along with those fucking LOTR pictures) to make their sequels simultaneously, then blame BACK TO THE FUTURE.