National Geographic is bringing a collection of extreme sport clips shot entirelly on IMAX to Blu-ray. The film showcases snowboard, windsurfing, and rock climbing, all shot on high-def’s granddaddy. Blu-ray is the absolutely, perfect medium to showcase IMAX’s 70 mm stock, but how about World’s Wackiest Police Takedowns or When Animals Take Revenge instead of lame extreme sports. Nether the less, ’Extreme’ is hitting shelves early November at a MSRP of $28.95.