Agreed, like John, I'm also under the impression that Voyage in Italy is a better film, and one that Godard owns some debt of gratitude. For me its very much a vital transition in Italian cinema (along with Visconti's Senso and La Notti Bianci) from the already rigid Neo-realism to a much more personal and existential intellectual cinema which I've always found the highlight of Italian film.

Godard's film however is great, and I'm glad for the one good chance you get to see Fritz Lang act.