@sickVisionz: Ah, let's see. I guess I should gather my thoughts for a moment.
Brief rundown: Utena originally began as a concept project called B-pappas, branching out into a comic series and a tv show, neither of which had much to do with each other. The very eccentric but talented director, best known for directing Sailor Moon, was frustrated with the lack of creative control he had over the shoujo, the tropes of which he helped to establish, and was also under a lot of pressure. He was also under pressure, so he thought Utena would be his last project, so he decided to make it his opus. He created the series Revolutionary Girl Utena, which realized shades of adolescent self-actualization, deconstructed shoujo tropes, and functioned as a postmodern fairy tale. It subverted and exposed traditional gender roles, sexual repression, and fairy tale archetypes. While watching the premiere of the show's finale, he was struck with the idea to create a stand-alone movie called Adolescence of Utena, which was a different version of the story. It had a bigger budget and seemed to leave more of an impact than the show, but unlike the show, which offered much in the way of style but even more substance, the movie showed no artistic or narrative restraint whatsoever.
The series is about a girl named Utena who attends an extravagant cyberpunk/turret fantasy high school who vows to become a prince after her life was saved by one after her parents died. She's not mannish, and she doesn't want to be a boy, and in this version it is important to note that she is heterosexual (not b/c there would be anything wrong with it if she wasn't, but b/c to mistake her for a lesbian would be to miss a large point of the show) but she prefers to dress like a boy and asserts herself. In the Japanese version she refers to herself with the boyish pronoun "boku." While defending her friend's honor in a sword duel and defeating the boy she challenges, she inadvertently wins the "hand" of a girl named Anthy, whom the Student Council Members call the Rose Bride, and must keep dueling to defend Anthy and her champion title. But that's...not really what the show is about...that's just the best I can summarize it in a few sentences.
I'll start with analyzing the movie because it's much simpler.
In the movie, Utena isn't exactly straight; she dated a boy named Touga a long time ago but now dresses like a boy and denies her femininity. She goes to a magical turret school but she doesn't pay it any attention. In the original series everyone had a different hair color; Utena's pink hair was symbolic of the feminine mystique as well as being part of the color brand of the Kaballah. Green (the color of Saionji's hair) was foolish pride, and that symbolizes Saionji's personality quite well. Orange symbolizes intellectual curiosity, and orange is the color or Juri's hair. Juri is a strong, complex young woman who fights to accomplish her own dreams. However, none of this applies to the movie, because the characters were much better developed in the series than here. In the movie, the rainbow colors of everyone's hair are just that, rainbow anime hair. This happens a lot in anime, as we all know, and it was exposed and gently subverted in the series, but it only worked in the show because the characters were better developed, (like actual people) and the characters in the movie are more strawmen than actual people. In the movie the hair doesn't really mean anything. Moving on! =)
Utena goes up to the roof, where she meets a girl named Anthy taking care of a rose garden. Roses are used heavily as a motif in the movie as well as in the series. It has different meanings in the show, but in the movie it's a bit more straightforward: the roses here symbolize feminine sexuality and how, in order to have a sexual/romantic relationship on equal terms, two women have to approach each other free of a position of servitude towards a man to feel validated, which is why Anthy is tending the roses herself. Basic summation: Anthy and Utena are lesbian loverers