RENT was less like the movie FAME and more like HAIR for twentysomethings in the 90s. It's also a rather coy modernization of Puccini's opera, LA BOHEME.
I'm skeptical about the film, having seen the original Broadway production. It's doubtful that the impact that had can be anywhere nearly even approximated.
The original was an overwhelming experience because the physical presence of these performers on the stage helped create a direct connection with the audience that was utterly unlike any Broadway show you could expect. It was, rather, like an intimate rock concert. Everybody knew all the performers. Everybody knew all the songs. Everybody knew every scene, every word. Everybody was standing on their seats or dancing in the aisles. The only thing missing was lighters held aloft. It was raucous and riotous and a screaming good time!
I can't imagine that this filmed version will give even the scintilla of a hint of what it was like to be in the actual theater ten years ago.
Of course, it wasn't only being in the theater, but it was being somebody of that age, time, and place. If you were in your mid-to-late-20s, in the mid-90s, and most important a true New Yorker[!], then you couldn't help but feel that the original RENT fully expressed a certain zeitgeist with quite profound passion.
Also, if you don't find the line "you can take the girl out of Hicksville, but not Hicksville out of the girl" convulsively hilarious, then what the original RENT meant will be lost on you.
The author of the show, the late Jonathan Larson, set RENT in about the year 1989, and, in a way, the original show, coming out six or seven years later, was already a piece of nostalgia. The "La Vie Boheme" finale of the first act was as much a rallying cry for non-conformism as it was a wistful look back at a time, maybe the only time, when that was possible.
This is also something that could never be conveyed by a version filmed and released in 2005.
I miss the OLD Alphabet City!