This movie belongs to the "film within a film" genre that opened up half a century ago with Fellini's 8 1/2. It features John Cusack and other American actors summoned to Buenos Aires to make a film that, we are told, experiments with cinematic language. The story is improvised (there is a script but nobody seems to take it seriously) and some scenes (like in Godard's La Chinoise) actually belong to the film within, as the point of view changes and we see the cameras rolling and the booms in place. Sequences are announced with title cards, also in Godard's style. The view of Buenos Aires and its people is that of an average American tourist; there are some comments about Peronism and the 1976-1982 military dictatorship but there is no depth or meaning in them. Everything we see or hear is capricious and at best whimsical, at worst pretentious and at times boring.
Al Pacino plays the mysterious (and somewhat devilish) long distance mastermind of the project, He gets the best lines and makes the most of them; the short time he is on screen is the best part of the movie.
The movie ends up saying nothing significant. Although some ideas may be interesting, it it difficult to gauge the intentions of the director. All in all, an unsatisfactory film.