The Corbett-Fitzsimmons Fight is an 1897 documentary film directed by Enoch J. Rector depicting the 1897 boxing match between James J. Corbett and Bob Fitzsimmons in Carson City, Nevada on St. Patrick's Day. Originally running for more than 100 minutes, it was the longest film released to date; as such, it was the world's first feature film. The technology that allowed this is known as the Latham loop. Rector claimed to have invented the device, but its invention is disputed. He used three such equipped cameras placed adjacently and filming on 63mm nitrate film. Only fragments of the film survive. The known fragments were transferred in the 1980s from a print owned by Jean A. LeRoy of New York City, the transfer done on a specially built optical printer to convert the film to 35mm film. The film was also the first to be shot in widescreen, with an aspect ratio of about 1.65:1. According to Dan Streible, The Corbett-Fitzsimmons Fight is "one of the earliest individual productions to su