Here’s How to Win a Free Stay at Caesar’s Palace to Celebrate the 15th Anniversary of ‘The Hangover’

To celebrate The Hangover’s 15th anniversary on June 5, Casino.org is offering true fans a free night’s stay at Caesars Palace in the iconic Hangover suite seen in the film.

Lest we forget, The Hangover starred Bradley Cooper, Ed Helms, and Zach Galifianakis as hapless bros who lose track of the groom (Justin Bartha) at his own bachelor party. The room, which is worth up to $2,200 per night, is the setting for some of the most iconic sequences in Todd Phillips’ 2009 comedy. Notably, it’s the room in which the boys return to find Mike Tyson (famously playing himself) irate over the theft of his beloved pet tiger.

But the contest is deliberately designed for Hangover super-fans; so if you haven’t seen the movie since its release and are hoping to win a free trip to Vegas, you might be disappointed. The official entry form, which goes live on May 31, contains a trivia section quizzing fans on their Hangover knowledge.

“We recommend you watch The Hangover once, twice, maybe thrice before opening the quiz as we’ll be testing your Hangover comprehension!” Casino.org promises. Fans will be expected to regurgitate granular details about the character’s medical ailments, obscure facts about minor supporting characters, and detailed recollections of costumes.

“The Hangover comically embodies everything that is Vegas—extravagance, luck, and fun far beyond the ordinary,” Casino.org’s Alex Korsager told Men’s Journal. “What better way to honor the cultural relic that is The Hangover than by celebrating in the very place that inspired such a film 15 years ago?”

Winners should be prepared for not only the trip of a lifetime but a few unexpected treats, as well. According to Casino.org, “The winner is also in for a Hangover-inspired surprise in the hotel room! No promises, it’s not a tiger.”

Submissions are open from May 31 until June 30, so act quickly if you hope to beat other Hangover aficionados to the punch. You can click here to enter the contest.