Maybe it's just me, but I research the movie topic to learn the real true story. It helps me understand that the movie was just a movie and (usually) is historically inaccurate.
For example in the Titanic, Myth Busters revealed that it could have been possible for both people to survive on the floating debris, and using various techniques and positions, found one that would have worked.
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Another thing is that movies just focus on one or a few people. But the reality is, especially in the Titanic, a multitude of people died, many of them couples and families alike. Yes it was tragic, but so was 9/11, all the wars of the past, etc. The movie just glorified it with a love story to get you interested.
It's normal to use movies as a type of catharsis, but one must come back to reality eventually and understand "it was just a movie." If a person cannot separate reality from fantasy, perhaps there are some underlying issues within the self of the person and perhaps talk therapy would be in order to get that out in the open to cope.
Not attacking you or putting you down directly, just stating a few things for people in general. One can be touched by a movie and feel sad, happy, etc afterwards (and especially afraid after a good horror film), but eventually we have to come back to our normal lives and understand that all it was was a bunch of theatrics.