This biographical drama gives an account of William Friese-Greene, who first designed and patented a working cinematic camera. This claim is subject to some controversy, but evidence now tends to support it. The film was notable for its cast: many well-known British film actors appeared in cameos (as listed below). It was completed and shown just before the end of the Festival, but the general release was not until 1952. William Friese-Greene is played by Robert Donat. Told in flashback, the film details Friese-Greene's tireless experiments with the "moving image," leading inexorably to a series of failures and disappointments, as others hog the credit for the protagonist's discoveries.