Three mega-box office demolishing comedies later, and it's hard to imagine anyone but Bradley Cooper, Zach Galifianakis and Ed Helms heading up The Hangover 's Wolf Pack.
But in an exclusive clip from The Hangover Part III Blu-ray, we're shown a tantalising glimpse at what could have been, with Horrible Bosses star Jason Sudeikis auditioning for the role of Alan (tongue very much in cheek).
And not only that, but the clip's even introduced by a special guest star. Over to you, Mr Chow...
The Hangover Part III is available on Blu-ray and DVD from 2nd December, and Digital Download now.