Michael Bay discusses how he made his documentary "We Are Storror" about the U.K. parkour team, even though he "could not have anything to do" with the filming.

SXSW: Bay's foray into nonfiction is a portrait of seven daredevils who aren't ready to grow up despite approaching middle age.

In his SXSW-bowing latest, the 'Transformers' director showcases the exploits of a flamboyant seven-member parkour team.

For 15 years, the best thing the ballsy U.K.-based parkour team known as Storror could say for a successful stunt - whether jumping off a cliff together or leaping between tall buildings for videos they uploaded to YouTube - was that none of them had died in the process.