American Film Institute , another massive film resource with studies headquarters in Los Angeles.
Casper, WY: Film Commission , everything you wanted to know about making a film in the Casper, WY area, locations, support, government, etc. Kelly Eastes in charge, contact Kelly as webpage is offline.
Destination Cinema is the parent company for the IMAX theater in West Yellowstone, ID where the film Yellowstone plays daily. Also go to IMAX for specific information at that location. 801.392.2001 in Ogden, UT.
Teton Gravity Research ski film production company based in Teton Village, Wyo.
Trailwood Films DVDs and videos of adventure, wildlife and travel programs based in Shelbyville, KY with multiple WY productions. 1.800.75TRAIL.
Wyoming Film Office , source of information about film/video/commercial productions, equipment, extras, laws, locations, etc. 1.800.458.6657.
Mandy's Resources , Wherever you go, here's a list of location scouts, extras, camera equipment, and more.
More to follow...