As a director, Eli Roth is best known for his shock and gore pictures: “Inglourious Basterds,” “Hostel,” “Cabin Fever,” and so on. It’s kind of strange to see him at the helm of a family fantasy movie, but he nails it in a way that makes one curious to see him branch out further. “The House with a Clock in Its Walls” is definitely a creepy-scary film, but it’s aimed at families, so it’s more gross-out rather than freak-out.