Highlights include Zach Galifianakis sharing a lollipop with Melissa McCarthy

The first trailer for The Hangover Part III has been released online. Scroll down and click ‘play’ to watch it.

The two-minute teaser bills the final Hangover film as “the epic conclusion of the trilogy of mayhem and bad decisions”. Highlights include a glimpse of Zach Galifianakis‘s Alan sharing a lollipop with a new character played by Bridesmaids star Melissa McCarthy.

The Hangover Part III is due to arrive in cinemas on May 24. Unlike the previous two movies, it doesn’t involve a wedding or a bachelor party. Instead, the film begins with the funeral of Alan’s father and sees the Wolfpack hit the road, making an inevitable pitstop at Las Vegas along the way.

Discussing the film’s set-up, director Todd Phillips has said: “The Hangover Part III is Alan’s story. He’s going through a crisis after the death of his father, [and] the Wolfpack is all he has.”

Alongside Galifianakis, Wolfpack mainstays Bradley Cooper, Ed Helms and Justin Bartha have all reprised their roles from the first two films, with Ken Jeong’s scene-stealing Mr Chow also back for one last adventure. Meanwhile, John Goodman has joined the cast and has revealed he plays a “a killer”.

Released in 2009, The Hangover became the highest-grossing R-rated comedy ever and won a Golden Globe for best motion picture – musical or comedy. The 2011 sequel, The Hangover Part II, was even more successful at the box office, taking over $580 million (£375 million) worldwide.