One of the more subtle jokes in Jurassic World is the quiet presence of that staple of overpriced, under-classed theme park nightlife wining and dining: a Jimmy Buffett's Margaritaville franchise location.
A joke that was perhaps less subtle was a single-shot gag, among a montage of tourists running screaming from a swarm of prehistoric flying beasts, of a man who had the presence of mind to pick up a margarita in each fist and gently guide them out of the restaurant before it was smashed to pieces by scaly, living projectiles.
He's been recognized as a hero by many, but perhaps best immortalized in this animation by enerJax on Tumblr:
But moviegoers of a certain age are better able to recognize the ultimate gag in this single clip. And that's that Mr. Margarita guy was a cameo from none other than the mayor of margaritas, Jimmy Buffett himself. In fact, according to producer Frank Marshall, Buffett is the official bartender of Jurassic World.