You won't be sorry you watched this. This is a older movie, but the theme, story is classic teaching at it's best. I would think that many a couple might heed the advice in this movie. You are never too old for romance.
This is a unique story though, and brings up a lot of questions about people with "psychosis," and although it's hollywood, and doesn't show the emotional turmoil that most people go through while delusional, it does it's job in the way only fiction can, to educate us and ask the questions in the back of our minds.
Don't we all know certain people, perhaps even a character in our own psyches, that their beliefs or actions may be considered crazy by other people's standards, that actually carry in them, or with their words or actions, a truth that is not easily embraced by a mainstream culture who has at least partially lost it's values, or ability to see the importance of the finer things in life, romance, romantic love and poetry, etc, in the pursuit of making a living, or rising up the ladder. Johnny Depp of course if perfect for this, and believable. Well cast all around.
It's drama, comedy, psychology, mythology, and theatre and poetry in many places.