Don't SPOIL the movie for others.
This site has asked that you put Spoiler in the thread title. Many people check reviews just to see how others liked or didn't like the movie. There is a Spoiler feature that you can use to black out the part of your comment that is a definate spoiler.
It's easy to do.
The following is from the Help Page of IMDB
What are 'spoilers'?
A spoiler is usually defined as a remark or piece of information which reveals important plot elements (for example the ending or a major plot twist), thus 'spoiling' a surprise and robbing the viewer of the suspense and enjoyment of the film.