Want to find the heart of rock & roll? You can hear it thundering in Anvil, the Canadian metal band that influenced the likes of Metallica but never hit pay dirt. No wonder lead vocalist Steve "Lips" Kudlow and drummer Robb Reiner are banging heads and egos. Sacha Gervasi's powerhouse doc brings humor and fervent focus to Toronto musicians, supporting their families with day jobs, who won't give up the dream. Ever. Listen to Anvil rip into "Metal on Metal." It's hardcore inspirational.

“Time to Pretend”

Listening to MGMT’s breakthrough song, one might interpret it as being about the excesses of rock stardom, but it’s actually about the duo’s pet praying mantis. Ben Goldwasser and Andrew VanWyngarden told Rolling Stone they got the idea from the insect's jerky movements. The mantis died, but the two bandmates kept the egg sack and allowed the hundreds of eggs to hatch. “We tried to name them all, but they died after a day,” said Goldwasser, with VanWyngarden chiming in, “But the praying mantis dance inspired us.”