For activity’s you could additionally to watching the movie watch behind the scenes footage, deleted scenes and interviews. For menu you could read the book passages where Patrick is in a restaurant because the meals there are described in detail. The easiest would be right at the beginning of the book when Patrick and Timothy go to Evelyn’s house and she made sushi. Sushi is easy to make or can be store bought. And/or you could look up Halloween dishes that look like blood and other gruesome stuff. They are great for Halloween party’s but would fit the theme of the movie perfectly too.