Some random thoughts of a film--"Match Point"

It's so difficult for me to express such these kind of thoughts or feelings in English, I know there are a lot of mistakes, I am sorry. Please help me to improve. Thanks a lot!

Since I couldn't fall in asleep last night, so I got up and saw a movie--"Match Point"
It is not a new movie, I believe a lot of people here have seen it before, I want to say I was so really regret to seeing* this movie before sleeping, because after having seen it, I was awake for the whole night.
I don't know how to categorise this film, tragedy or emotional or black humors? Whatever it is, it let me get a deep insight of human nature， and also inspire myself to think more.
When the film ended, I was surprised that I felt some kind of release for the hero, He choose to kill the woman he crushed had a crush on, just because he want to keep the good level of life condition and a relationship with the upper class. He should be too cruel to be forgiven, but why did I felt feel sympathy for him?
The director (Woody Allen) is very good at telling the story, he lets all the audiences come into it, so you can deeply experience the feelling sometimes you will see a lot of familiar situations or conversations. The movie really helps you to think deeply about human nature, or "Lucky" or something special just for you.
I know a lot of people don't like this movie, and think there are much is a big gap between this and the another movie---"Midnight in Paris", but for me, I still think it's worth to seeing, and you will get your a unique feeling of from it.

* regret + inifintive exists but with the meaning of -sorry. eg. I regret to tell you I won't be able to attend the meeting. A real regret uses gerund- I regret drinking so much whiskey.

Some errors, but generally small ones. As you say it is hard to express personal feelings like this and you have done so very well.