Unlike many comedies that rely solely on dirty jokes, The Hangover has a tightly written mystery script. As the characters slowly discover what happened the night before (a tiger in the bathroom, a missing tooth, a baby in the closet), the audience is just as hooked on the "whodunit" as they are on the comedy.
Characters in The Hangover talk over each other constantly. The rapid-fire exchanges between Bradley Cooper and Ed Helms are hard to catch in English. With , the viewer can read the dialogue in Vietnamese script quickly, ensuring no punchline is missed.