A good film

Rating: 10/10 (15 December 2018)

A good film, and a good idea to go ahead in time when the original went backwards, but why are the years always in multiples of five? 1985, 1955 now 2015. There are other years.
I thought it was a bit hypocritical that the opening premise of the film was to stop Marty's son joining Griff in a robbery that would see him in jail, which would lead to Marty's daughter in jail too after a failed breakout.
They made it quite clear that you shouldn't know too much about you own future, and they knocked out Jennifer for this reason, but why were they there in the first place if not to break the same rule?
I did like the following events whereby Biff changed his future using the time machine to go back in time to cheat at gambling, and then seeing the effects of these changes when Doc and Marty returned to 1885.
I enjoyed how Doc and Marty then had to go back in time again to repair the timeline, coincidentally the same time and place in which the first film took place so Doc and Marty had to evade thier former selves (a shame they hadn't thought ahead more in the first film and had someone (or the actors themselves) to play thier future selves)