David Breashears, a mountaineer, author and filmmaker who co-directed and co-produced a 1998 IMAX documentary about climbing Mount Everest, has died, his business manager confirmed Saturday.

IMAX 15/70mm is unique ... They have been to the top of Mount Everest; they've been to the bottom of the ocean – they've been up on the space station. So, our film cameras are extremely robust.” ...

He climbs Mount Everest every single time out ... It’s an astounding movie that deserves to be seen in a big-screen format. IMAX is the pinnacle and you need to get absorbed in this movie.