"Year One" is a bit of a disappointment. I usually like Jack Black movies, despite being more of a period-costumes-and-subtitles sort of movie-goer. However, this film is not even up to the standards of the typical JB fare. It's merely a bunch of scatological and sexual jokes, and lame ones at that, strung together in a completely implausible historical context. The storyline is weak, and the performances were merely adequate. Some laughs, to be sure, but I am glad I did not spend money on this. I think I spent more time pondering if Olivia Wilde's accent was genuine (I don't think so, since she was born in America) than I did laughing at the movie. If you are thinking of taking preteen children, I would strongly caution against that, but use your own judgment. I wish I had! I hope Jack Black's next film is more along the lines of "School of Rock" and utterly unlike this movie.