The phrase "HD 2" does not refer to a specific, widely known standalone film or recognized movie franchise. Instead, it usually appears in one of several different contexts: A Sequel in High Definition:
You're looking for information on HD movies. Here are some details on what HD movies are and their benefits: hd 2 movies
If you meant the original movie titled (often stylized as H.D. - Human Device ), here is a summary paper: The phrase "HD 2" does not refer to