If you are watching the 1080p High Definition version (typically found on Blu-ray or premium digital rentals), here is what to expect from the visual experience:
Director Todd Phillips and cinematographer Lawrence Sher captured Bangkok with a saturated, cinematic grime. In HD, the contrast between the luxury resorts and the shadowy underworld of the city pops off the screen. The Hangover 2 Hd
If you have the film on DVD or have only ever watched it on basic cable (where every curse word and nipple is censored), you have not truly seen the movie. If you are watching the 1080p High Definition