Ski film
A ski film is a motion picture with sequences of expedition, recreation, competition, or acrobatic exhibition on snow skis. These non-fiction films capture the experience of an athletic outdoor snow sporting culture. Ski films typically present one or more techniques (ski jumping, cross-country, downhill, freestyle), locations, or skiers (expert, celebrity or novice). Categories include the feature, documentary of competition or other event coverage (such as a snow festival or sportscast), instruction or technique demonstration, retrospective history, travel guide showcasing a region, or a short subject (such as a web series or included in a newsreel). More  than 200 such videos debuted in 2006. Notable examples are listed at the Ski and Snowboard Film Institute, or have received awards from the International Ski Film Festival, IF3 International Freeski Film Festival, Cold Smoke Winter Film, "Powder" magazine, or similar. Feature film. Feature-length entertainment films about skiing, skiers, and the ski lifestyle, shot in actual locations around the world and featuring the best skiers of the day, have been released annually since 1938. Although not distributed through normal film channels, these movies were first exhibited on the resort, club, film festival and ski show circuit and are now  available via internet video or home video. Official film trailers, released to advertise the coming feature, present highlights of the film. Feature content typically includes Many features include sequences of other mountain, airborne, water, or speed sports. Slow motion and time-lapse effects and skier point of view shots have been used in ski films since the first features of Dr. Fanck. Many film makers release a film early in the ski season, with content recorded in the past season or two. The following list is a chronology of prolific feature production companies or directors with numerous ski films over  the indicated time span. Other films. Many ski film makers have initially or predominately released featurettes and short films, in addition to features. Featurette and short film series. Ski film may also refer to a fictional theatrical-release comedy or drama which incorporates a skiing theme, although the on-snow scenes may have been enhanced by the use of stunt doubles for the actors and special effects. Film festivals. Ski, snow, adventure and mountain film festivals are held in Switzerland (), Austria (Graz, St. Anton), Germany (Tegernsee), Italy (Cortina, Trento), France (Annecy, Dijon, Val d'Isère, Chamonix), Russia (Moscow), Spain (Torello), Canada  (Banff, Montreal, Whistler, Rossland), United Kingdom (London FreeSki, Fort William, Kendal), New Zealand (Wanaka) and United States (Ishpeming, Jackson Hole, Steamboat Springs, New York City, Midwest, Crested Butte, Mammoth, Missoula, Lake Tahoe, Stowe, North Bend, Boulder, Whitefish, Flagstaff, Williamstown, Mount Snow).