At the Rock 'n' Roll Camp for Girls, based in Portland, Ore., girls have one week to learn an instrument, form a band and play a song for an audience of 700. That's quite a different experience from traditional summer camp, where kids convene to play Capture the Flag and roast s'mores around a campfire.

When filmmakers Arne Johnson and Shane King heard out rocker Carrie Brownstein (formerly of Sleater-Kinney) speak about her experience as a counselor at the camp, they knew it would be an inspiring story to capture on film. Girls Rock!, which opens in select cities on Friday, March 7, does just that.

Following four campers as they form friendships and musical groups and talk about just being a girl, the documentary gives non-campers the chance to see what it's like to have the opportunity to learn from Brownstein and other veteran musicians like the Gossip's Beth Ditto. And it's certainly an inspiring atmosphere.

Carrie Brownstein (left) and Beth Ditto

Filmed in 2005, all of the campers gather together in a circle at the beginning of their week at camp to quiet their nerves and break the ice. Most of the girls haven't ever played music before, and some (like 17-year-old Misty) haven't even seen the instrument of their choice. Things get really tough when genres are posted on the wall (hip-hop, punk, rock, etc.) and some girls are left standing alone. Fifteen-year-old Laura, for instance, longs to front a death metal band.

The film focuses on four girls in particular, highlighting their personal stories as much as their musical progress. Laura is a Korean adoptee who has a hard time fitting in at home in Oklahoma. She sports Iron Maiden T-shirts and gets very physical very fast, hugging her new bandmates and eagerly trying to form fast friendships. However, she still feels left out, and the camp initially doesn't seem to do much to help her find like-minded friends.

Laura

The aforementioned Misty is a special case in Girls Rock! She is specially documented by a female filmmaker in order to help her feel comfortable discussing her personal issues on camera. She comes to the camp from a lockdown facility and is challenged by her bandmates constantly.

Having formed a band based on hip-hop, their song ends up sounding more like soulful rock, and the group is divided on choosing a better name and look. Misty is quick to get argumentative, but counselors intervene to help the girls talk it out and resolve their differences.

Misty

Girls Rock! also follows youngsters Palace and Amelia in their bands and homes, talking to their parents about their social anxieties. It is clear that the parents, who speak candidly, see the camp as a positive experience that their daughters can benefit from.