The most influential documentary filmmaker of this generation, Michael Moore, is back with a terrific— and entertaining— movie that does its work in a more gentle mode than we’re used to from the incendiary rabble-rouser. This film finds Moore going back to Europe to search for ideas that have proven enormously civilizing for European culture but somehow remain off the political map here. It’s a mild and surprisingly hopeful critique from the maker of Fahrenheit 9/11, Bowling for Columbine, and Sicko.