I'm completely with domino here - this was such a joy, which is especially impressive given that the main themes (the disintegration of a marriage, Godard's frantic and self-conflicted attempts to reinvent himself) could very easily have made a movie such as this humorless. Godard is a ridiculously self-centered prick here, the kind of guy who would and does pick such moments as cunnilingus or a screening of The Passion Of Joan Of Arc to have heart-to-hearts not because he has bad timing, but because he's totally unwilling to stop speaking, to stop expressing himself. Godard is ultimately too conflicted to effectively engage in the zeitgeist because he can't reconcile the idea of creation-by-committee with his own egotistical nature. The final image of Godard defeated and rendered silent by his own Dziga Vertov Committee is the perfect denouement to this story of Godard's contrariness causing self-destruction.
All this would be dull and perhaps even depressing if it were presented with total seriousness, but thankfully Hazanavicius side-steps the temptation to play the drama and especially Godard's egotism deadly straight and instead gives the audience lots to laugh at in the form of Godard's bluster juxtaposed with the ineffectiveness of his own actions (the numerous press conferences and university lectures that go wrong, Godard's failed attempt to sell La Chinoise to, uh, the Chinese, the endless and unresolved car ride argument), but in such a way that the movie never feels mean-spirited, even when engaging in subtle or not-so-subtle parody of Godard or his early movies. I especially appreciated the jabs at British Sounds late in the movie, though the absolute funniest part has to be the insane second lecture scene, where Godard takes the suggestion from his wife that he should be more assertive with university students far too far and goes on a pseudo pro-Palestinian tangent describing Jews as Nazis, Nazis as Jews, and yesterday's Jews today as yesterday's Nazis (today).
I liked this movie so much that it's almost a shame that it's so specific in its subject matter and humor, because I know several people who would appreciate the movie's aesthetic, message, and overall tone if they were only familiar with Godard or anything that he made. As it is, Le Redoutable will just have to be one of those great movies that one can only appreciate with a surplus of context.