Spoilers for Colin Treverrow's Jurassic World have been leaking out like a sieve. The latest leak is this brochure that extras were given. It provides lots of interesting new details. One in particular, is that Jimmy Fallon, host of the Tonight Show and former Saturday Night Live cast member, will have a cameo in the film. When visitors arrive at the Gyrosphere they will be greeted with an instructional video hosted by the comedian. This should be a neat way of connecting the film to the first Jurassic Park, which featured Dr. John Hammond (Richard Attenborough), owner of Jurassic Park and founder of InGen, explaining the cloning process.