The challenge? Take any movie and cut a new trailer for it — but in an entirely different genre. Only the sound and dialogue could be modified, not the visuals, he said.

Mr. Ryang chose “The Shining,” Stanley Kubrick’s 1980 horror film starring Jack Nicholson and Shelley Duvall. In his hands, it became a saccharine comedy — about a writer struggling to find his muse and a boy lonely for a father. Gilding the lily, he even set it against “Solsbury Hill,” the way-too-overused Peter Gabriel song heard in comedies billed as life-changing experiences, like last year’s “In Good Company.”