Did the BTTF marathon at my local cinema on Wednesday. Tiring, but good.
BTTF1 is still the best of the three for me - and I noticed a few little things in there that I'd not noticed before. The one thing I can never understand about the plot is that, before Marty's time meddling, Biff is George's supervisor and treats him like shit. Fair enough, we see enough of that character throughout the 1955 portion of the film.
However, after Marty gets back to 1985, Biff is self employed as an auto detailer - nowt wrong here, of course - but George employs him to wash his car, and doesn't bat an eyelid when Biff comes into the house uninvited to bring in his new book when it's delivered. He even says "I've had to keep on top of Biff ever since high school", and then Lorraine says "Still, if it wasn't for him, we would have never met."
Nothing particularly bothersome here, apart from the fact that George decked Biff in 1955 because he was in the process of raping Lorraine! OK, you might forgive and forget in 30 years, but I'm not sure they'd talk of him like he'd introduced the two of them at a party one night or something.