You might know how the story goes already: A teenager named Marty McFly accidentally goes from 1985 to 1955 with a time-travelling DeLorean created by scientist Dr. Emmett "Doc" Brown. In 1955, he accidentally messes up the flow of time by causing his mother to fall in love with him instead of his father at a particular moment. He now has to restore the natural course of history and go back to 1985 with the help of Doc Brown from 1955.
As the movie unfolds, the viewer is introduced to the hilarious recurring gags, each of which is echoed in both sequels. For example, the local bully, Biff Tannen (or an incarnation of him) is always covered in manure after encountering Marty in some way. Others include a chase between Marty and some member of the Tannen line, usually ending in Marty's favor, as well as Marty always waking up in a room believing his time travel to be a dream, only to have an incarnation of his mother telling him he is safe in "good old" 1955/the 27th floor/the McFly Farm. Since I had seen all three films in a row, I knew when these gags would come up, but they act as part of the Trilogy's source of humor and work to its advantage.
The story of the first movie, as described above, was very easy to follow and was entertaining to see play out. Michael J. Fox and Christopher Lloyd were perfect for the roles of Marty McFly and Doc Brown, bringing the characters to life in a very believable way, which really helped the the film. The 1955 setting was portrayed in what I felt was true to what it might have been like, and I enjoyed how Marty used the music and knowledge of the future to his advantage, for example: using Van Halen combined with a radiation suit to convince his father to ask his mother out to a school dance, which also ended up inspiring a book his father would publish in the "new" 1985. The movie is regarded as a classic, and I would wholly agree with that label.
Now the sequels for the movies are unique in their own way. Both films were filmed at around the same time and then split into to two movies, much like how Peter Jackson would later film the Lord of the Rings trilogy. The second film, called Back to the Future Part II, picks up exactly where the first one left off. It even overlaps the first one by showing the viewer the last minute of the movie again as a slight recap. I can see how this would have come in pretty handy in the movie's original theatrical run, so I can't really complain about it. The sequel begins simply enough, with Marty needing to alter a point in 2015 involving his son.
The story gets a little bit convoluted right after Marty recovers his girlfriend and loses track of a Sports Almanac he purchased that displayed every sports stat from 1950-2000. An old Biff Tannen uses the DeLorean to deliver the almanac to himself in 1955 to achieve great wealth. After Marty and Doc Brown go back to 1985, they see the effects of time travel with bringing future items back to the past. The plot of the movie becomes Marty needing to restore the timeline by recovering the Sports Almanac in 1955 and destroying it. The film ends with Marty accomplishing this, but Doc Brown gets struck by a bolt of lightning in the DeLorean, which causes it to go back to 1885. Marty gets a letter from 1885 Doc Brown and locates 1955 Doc Brown for assistance. The viewer is then given a brief ad for the third movie, Back to the Future Part III.
This movie continues where the 2nd left off, with Marty locating 1955 Doc Brown. With his help, they repair the DeLorean, preserved from 1885, and Marty travels back to the Old West to prevent Doc Brown's death. The DeLorean doesn't work after Marty accidentally broke the fuel line, so he and Doc Brown figure out a way to use a train to generate the power needed to get back to 1985. This is complicated when Doc Brown falls in love and Marty gets in trouble with "Mad Dog" Tannen. Despite these obstacles, Marty overcomes Tannen and travels back to 1985, without Doc Brown, successfuly at the end of the movie with the timeline restored. After preventing an accident he would have been in involving a Roles Royce, he sees Doc Brown come back in a Steam Engine converted into a time machine and meets his new family. The film then ends as a callback to how the first one ended.
Overall, I greatly enjoyed these movies. The story was pretty well-written, but got a little more complicated as it went on. That's not really a bad thing though, since it didn't really seem to affect how the movie was done. As far as the characters go, the main cast was enjoyable to watch and it was welcome to see Marty develop as a person and notice the flaws in his own character. The special effects aren't really that great by today's standards, but they were pretty impressive for a movie that came out when it did. Overall, I think the movie aged well, as it is still enjoyable to watch and somehow gave me a sense of nostalgia I never really had before.
The trilogy is an impressive work of the 80's and I think Robert Zemeckis knew how to make a Time Travel movie. Whether you have seen the movies before and already own them on something or you are getting into it for the first time, I would reccomend purchasing the Blu-Ray collection of the entire trilogy. These films are simply not ones to be passed up.