This movie ruined the joke!
It's one thing if you had already heard the joke. Maybe then you didn't realize how poorly they presented the joke. But, if you were hearing it for the first time, it was a huge disappointment. The first telling of the punchline was so anti-climactic and unfunny. They really missed an opportunity to make a better impression with the first telling of the joke. In the nature of the joke itself, they should have built up the anticipation much more. They could have even done a mash-up of different comedians interjecting a few words into a detailed and involved story, all leading up to a more satisfying punchline.
Instead, they started the joke in such a horrible manner that all we're left with is the regret of thinking how the joke COULD have been so much better. Unfortunately, nothing replaces a first impression when it comes to a joke.