This should be regarded as a classic of time and space travel. The plot is inspirational, and the combination of comedy charm and science fiction is really unique. In the film, the past and future travel back and forth through time, but it is very coherent and logical. Many details in it are closely related, and it is done in one go without being sloppy. For example, Marty can't accept being called a coward, Biff's ending is always buried in fat manure, and there are always various problems when preparing to travel (the plot here is ups and downs, I'm a little tired watching it), etc. These details are ingeniously linked in Part 1.2.3. Then I admire the restoration of the scene when I traveled back. In the second part, Marty returned to the stage to play the guitar and a series of plots were restored very well. Such a plot should not be new now, but it was really advanced in the 1980s and could be called a masterpiece. It opened up people's imagination for the future and opened the door to a new world for the audience. I believe that many people must have been obsessed with this classic in that era. Everything is inseparable from the original, and finally ends with the doctor's sentence "The future is not doomed, everyone is the same, the future depends on you to create, give yourself a better future!" The ending is perfect and very good. The past is not important, what is important is the present and the future.
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