Let's get this out of the way in case you haven't read any of the other reviews: if you're extremely religious, chances are, you're going to be insulted. Now, I'm not going to go into my exact views on the Internet because one, they're complicated and two, the Internet doesn't need to know, but I am more religious than Bill Maher. Yet, I still enjoyed this film. Because I still agree with him on a lot of points, like Christians should be more Christ-like and there are inconsistencies and immoralities in religious texts. However, it's not hard to notice there are some inconsistencies in Maher's argument as well, the big one being that he preaches doubt and yet he's absolutely certain that religion in all forms is detrimentral to society. If he preaches the gospel of "I don't know," I think he should be able to put up with moderately religious people. However, now that I'm off my mini-rant, I was still was able to sit through this whole movie on YouTube in one sitting and laugh a lot, and normally I hate documentaries (I honestly have a pretty short attention span, so I kind of walk off during the middle of movies in general).
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What may concern parents besides the questioning of religion are the typicals: shots of war, bombings caused by religion are shown, as well as fake blood on "Jesus" during a reenactment. Sex is prevalent such as sex scandals, relgious views on homosexuality, but it mostly isn't shown except for a few short clips from other films. Language... well, if one has ever seen Bill Maher on HBO (or YouTube, as I have), it isn't going to be shocking, but arguably it is not overused. He's not throwing in cussing every other word, or even every few sentences. Actually, for the most part, when he's interviewing other people, he keeps his language civil in terms of profanity. (He actually curses a lot more in a seven-minute clip of Real Time than he does in this movie.) When he's interviewing people, he does use harsh language in terms of confrontation, but if he didn't, he wouldn't have a documentary, would he? Consumerism is limited to film clips (granted, tons of them), as a point to humor. The main drug problem is the "Cantheism," (which Maher willingly participates in as a pro-marijuana proponent), but all in all it's kind of silly. While fanatics may proclaim anything and everything against Maher, saying he's a mean-spirited bully who wants to kill all morals, in actuality he's fairly kind (more kind than he often is on his HBO show) and is just showing what he believes. If you don't like it, don't watch it.