Kevin Smith promised to unveil the first trailer for his latest horror film Tusk at San Diego Comic-Con, and he delivered this evening. And it's much weirder than even we expected. Starring Justin Long as a podcaster visiting Canada for a new story, Long's journey takes a turn when he meets an old man who... winds up surgically turning him into a walrus. It's as bizarre as all that sounds, and Smith looks like he's blending body horror with a really strange sense of humor in this movie. We'll just have to see what comes of it when it hits theaters on September 19th.