Well, uhhh, the fools they are in April. Those fine fellow actors of mine have, uh, created a humorous trailer for their upcoming film This is the End. The joke is that it is a trailer for a movie that, well, uh, doesn't exist. Pineapple Express 2 isn't real, and, you see, that's where the humor comes from.
So, uh, the world ends and they don't invite Jeff Goldblum over? Uh, you see, that's not cool.