Super 8 - Disappointment

Hello my beloved readers.
Today I come to you with this movie, Super 8. Directed by Steven Spielberg and written by JJ Abrams, I had high hopes for this film.

This movie started out with a group of kids, desperately trying to make a movie about zombies. This was my first doubt, zombie movies do not turn out very well. However this did not linger in the plot other than the movie they were making. It started out very interesting, with an ominous atmosphere. I was relieved as the movie was going great. Wonderful cinematography and a very surprising aggregate of great child actors. Strange things are taking place around their home city, beginning with the train crash you might have seen in the trailers.
However, the last thirty minutes of the movie had such a degree of cliche plot lines that it ruined the rest of it for me. I won't get into it, but it really disappointed me. It was just like Lost, which  JJ Abrams also worked on. They both had a very interesting story and potential for an epic ending, however, the ends of them ruined them.
If the ending was better, I would have given this movie somewhere from an 8 to a 9/10. However, I will only give it a 6/10 because of the botched attempt at an ending. In other movies, the beginning and middle build up for a spectacular ending, which in truth is very difficult to pull off, but this movie was not acceptable. This movie was nothing more than a failed attempt at giving some nostalgia of earlier Spielberg films. I will not say it is horrible, but I expected way more from this.
Thank you for reading.
I have been getting numerous movies from the library, but I have been lazy at getting reviews out due to school beginning. I hope I get more out soon.