Cohalen & Vendome, thank you a lot for your suggestions of movies dealing with certain kinds of love. And for the scientific definitions of love, Vendome.
I have also been looking for distinctions of different kinds of love. First of all I found the distinction between platonic and sexual kinds of love. Philosophers believe that platonic love (the love to god, to yourself and to all human beings) is the basis of sexual love, such as affective, romantic, or hedonistic love.
But my basic research interest wouldn't be love, but the function of (Hollywood) movies to reflect (a global) society who's members share similar values. (For example ideals concerning love.)
Hollywood movies do not only reflect such ideas/values (by showing stories people like to see) but do also confirm these ideas by transporting them. They influence individuals' perceptions and therefore the whole society that itself has a strong impact on the individual (even on the one who wouldn't watch movies at all).
I hope you don't think I'm a freak now. First of all I love cinema and movies. But I'll have to write a thesis. (So why not writing on something I'm interested in?)
I see movie content analysis as one way to find out something about a society as a whole, and box office sales as one criterium to select the (love) movies for my investigation.
So my subjects are the analysis of visual data, Hollywood & society, Hollywood & reality, globalisation (the transport of cultural values by Hollywood movies) and love.
Does this make any sense?
It's very important to me what you all think of this, because I believe that people who are into movies know much more about all this than anyone else.
So thank you again!
Oh, and a special thank to Thiv. I do really like what you've written. It's one of these things you keep in mind, you know. May I quote you?
Swimo