I just watched Get Him to the Greek. I have mixed feelings about it. I wrote several paragraphs about different aspects of the movie but then deleted them because they weren't going anywhere. I'll just say that the movie wasn't super funny over all. Some parts were funny. Some parts were painfully unfunny. And I don't find it credible that you can really love a girl (as we're lead to believe that Jonah Hill loves his girlfriend), have a friend force his way into an awkward, uncomfortable threesome situation, and then manage to save both the friendship and the romantic relationship. Didn't they cover that pretty thoroughly at the end of Chasing Amy?
I did like the scene where Russel Brand talks to his 7 year old son shortly after learning that the boy really isn't his son. That scene was almost touching.
(from xkcd sucks redux)
The joke here is basically that there is a paradox called the Banach-Tarski paradox that says that you can take one sphere (not a real sphere, a theoretical sphere, as this paradox doesn’t apply to real objects) and, upon cutting it into pieces, reassemble them into two identical spheres, each the same size as the original sphere you carved up. This obviously doesn’t make much intuitive sense, but it works out in the magical math land of theoretical geometry, and, as in many xkcd comics, in this panel the joke is that one of the laws of magical math land suddenly applies in the “real” world, with humorous consequences. Of course, the consequences are only as humorous as “the guy had one pumpkin and now he has two” which isn’t really that funny. In fact, I can think of a 1000 different ways that this idea could be applied with morbidly humorous consequences for the various characters of the comic. Maybe Hipster Hitler can make use of this idea by having ol’ Hitler try to use this paradox to turn his one testicle into two. Regardless, in xkcd, a funny application of this idea is probably not meant to be. The joke also fails in that Randall was apparently incapable of drawing two equal looking pumpkins.