In addition to his feature-length documentary classics, Butler has also produced acclaimed IMAX features, such as the award-winning Shackleton's Antarctic Adventure (2001)[3] and Roving Mars (2006).

Objecting to the Vietnam War, he joined VISTA (the domestic Peace Corps) as a volunteer, working in the inner city of Detroit's North End, where he established a successful community newspaper, The Oakland Lion.

[13][14] The eventual movie Pumping Iron launched Arnold Schwarzenegger,[15] put bodybuilding and the gym business on the map, and became a film classic.

Both films follow world-renowned big cat biologist Dr. Alan Rabinowitz as he travels deep into the mangrove forests of the Sundarbans, searching for its legendary royal Bengal tigers—one of the world's largest remaining tiger populations, and last hopes for the species' survival.

Reportedly, White Mountain Films is also developing a medical thriller probing the mystery of how "shell shock" affects the brains of soldiers and veterans.