Answer
No, Ben Moses does not specialize in horror films. He is known for his work in a variety of genres, including comedy, drama, and action. Some of his most notable films include "The Hangover" (2009), "Bridesmaids" (2011), and "The Nice Guys" (2016). While he has directed a few horror films, such as "Cabin Fever" (2002) and "Wrong Turn" (2003), these are not his primary focus.