Garland Greene: Define irony - a bunch of idiots dancing around on a plane to a song made famous by a band that died in a plane crash.
At the end of the film when Cyrus is handcuffed to the ladder of the fire truck, he crashes through a restaurant bridge and falls towards the road below, (the fire truck passes below him) but somehow he lands in a construction yard on a conveyer belt leading to a crusher.
At the end of the movie, the plane is crashing into the front of a casino. This building is actually The Sands hotel. The scene was done a few weeks/months before the hotel was demolished, this way the damages to the hotels entrance as the plane was launched into it didn't matter.