There is 1 flaw when they go back in time to some where on a train station and theres a digital clock .These clocks wernt made in the time they went back too
I love it as well on sky its on nearly every week. the only thing that bugs me is when Marty is filming the car coming back and it goes through his legs. You can see the flames on his legs so you know there not really there. Other than that I love it.
I really like this trilogy one of the best, the only flaw that i can think of is that the petrol in the delorean that waits in the cave from 1885 - 1955 would not last 70 years and the delorean itself would undoubtably seize up. iv probably heard this before tho..