Fantastic and hilarious movie! If you like satire and especially if you liked the series VEEP or enjoy Saturday Night Live sketches, then you'll love this movie. The movie advances at a quick pace, is packed with humor, and does a great job of poking fun at how our society, media, and political structure are often mislead and/or manipulated for gain (be it money, power, or ratings). Watch/listen closely, because some hilarities are subtly mumbled, such as DiCaprio pointing out that the White House's head of astronomy is likely not qualified to be in that position (I won't spoil it for you by elaborating, but his referencing it twice had me laughing out loud, but also cringing a bit to think about how in reality, many Cabinet positions are simply filled with financial donors or yes men and not experts in those fields).
The movie, while clearly a comedy, will also make the more intelligent viewer ponder if this happened in our current society, just how much of the satire would in fact mirror many peoples' actions/reactions and how much political maneuvering and personal gain would be sought by those in positions of wealth, power, or the public eye in general. Sadly, just like there are those who price gouge during national disasters, there are and will be those who lie about and manipulate perception and data to advance themselves.
I was truly surprised so many people left bad reviews, but after reading many of their comments, I believe they didn't think of the movie as a comedy, so much as they took it as a personal affront to those who deny science (likely themselves included). If you can't laugh at a talkshow hosts' presidential jokes or political SNL type skits, then this movie isn't for you.
Overall, the movie was cleverly written and the acting was brilliant! I'm looking forward to watching it again with people who haven't seen it yet (for some reason sharing the laugh with first-time viewers is that much more fun!)