The movie is about a kid that is about a kid reporter fallowin a band a band on the raod trying to get an interview with one of the guys in the band that he looks up to but it turns out the guy is having sex with the girl the kid likes and in the end it turns out the guy has a wife and leaves the girl so she took drugs t OD and die but the kid ends up saving her

Almost Famous (http://en.wikipedia.org/wiki/Almost_Famous)

Almost Famous? About a kid who follows a band, writing a story for Rolling Stone magazine. This might be it.