Oh Dear... the Hangover is back. the third installment of this hugely popular franchise dropped the official trailer on Thursday, it features the boys out of Thailand — the setting for the second movie — and returning to their original stomping grounds in Vegas.

Even Mr. Chow has made a comeback (this time with clothes, it seems) and beloved Melissa McCarthy seems to be stopping by the Strip. Who wouldn't love to see a romance bud between the Bridesmaids star and wolfpack leader Alan (played by Zach Galifianakis)?

The Hangover Part III poster has taken on Harry Potter and the Deathly Hallows 2 featuring a face-off between Zach Galifianakis and Ken Jeong.
Warner Bros has unleashed the first poster for the third part of Hangover which parodies the one-sheet for Harry Potter and the Deathly Hallows: Part II, reported Aceshowbiz.
The promo image for the comedy movie features Galifianakis' Alan Garner and Jeong's Leslie Chow face-to-face and the tension looks high.
The tagline on the poster reads, "It all ends," while the background shows buildings in flames.

The movie opens on 24th May.