The mind can respond to stimuli experienced throughout the day, such as a movie, a game, a book, etc; these things appear in our dreams, and can often muddle an analysis of a dream, so it's important to have a good idea of what is junk, and what is not. If you saw a film about such a plane, then you might want to just ignore it; this is a general rule of thumb, for me. Sometimes we dream as our minds explore things that we otherwise wouldn't; this is normal. Our minds sometimes deal with things we can't deal whilst awake, such as a tough break-up with a loved one, an argument with someone close to you, etc. Dreams happen for a number of reasons, and it is pretty interesting, or at least to me. Don't buy into the magical nonsense, though, similar to TV magazines with their ridiculous star-sign predictions. If you dream of a cat, it doesn't mean you are going to be great with women the next day; it might be a reflection of your feminist side, but that's about it. I also find that dream psychoanalysis can be subjective, but one thing I've always stuck with, when trying to ascertain a meaning behind a dream, is always to reflect on the dreamer. By following the above, I've managed to get a lot out of some people, based on their dreams; I don't tend to do it know, because, frankly, it takes quite a bit of effort; looking down all the routes, trying to figure out what has meaning to the person, and what has a resemblance, or what is a manifestation of something, etc. If you're really interested, look up some of Freud's dream psychoanalysis; I read something of his ( think wrote by his son, but dictated - I can't remember) a while back and found it very interesting; the way he went about dreams, was actually a lot like how I've gone about them.

Good practice could be to get someone close to you, whom you know well, to tell you their dream, and if you're lucky, you'll get an easy one. Consider things like smells, sights, emotions, and more. Consider things that have a direct personal meaning to them. Try to think of the dream from their perspective; it's like a puzzle. Ask questions, and try to get as much information as you can about the dream, and about aspects of the dream that you feel might reflect them as a person. Try to avoid thinking of the dream as something that will magically happen; think logically and realistically. Writing things down might help, as some people's dreams can get incredibly complex, and the more information you get, the more variables you end up with, making it a very complicated puzzle, and the worst thing about it, is not knowing whether something is even worth analysing, or whether it's just junk; this is why you must ask them whether they recently watched TV, read a book, or had other stimuli that could have affected their dream. A lot of the times, dreams tell you what you already know, so there's nothing particularly fascinating about it, unless you feel the need to understand what it means, so as to separate yourself from it as something distressing, as I've done over the years; understanding something makes it easier not to be afraid of it.

Anyway, that's what I've done for years; it's how I cope with dreams, and have helped people with theirs, in the past.

Good luck!