Use of 蓝 (Blue) in a Specific Context?
I think blue in this case means the color blue, since 藍 in Chinese doesn't mean anything else.

ps: The English name of the movie 有人喜歡藍 is not "There are people who like blue." It is "Blue Valentine". http://www.youtube.com/watch?v=Q7B9LvwT8SU