A marketing campaign was launched for The Hangover Part III including trailers, posters, apps, games, and social media pages. Two trailers were released showing new footage to generate anticipation. Over 18 similar posters were used featuring changing images but the same layout. Apps included sounds from the films and photo booths. The film's Facebook and Twitter pages updated fans. An official website provided information on the cast and film showtimes. The multi-pronged campaign aimed to build hype among existing fans and notify them of the new installment's upcoming release.