What people say about Godard films are more interesting than the films. This one is a low budget movie where an actor drives a Ford Mustang but the story assures us it's an interstellar ship: why let lack of budget get in the way of an intergalactic plot? The movie mixes genre with a sort of Dick Tracy meets Cold War spy flick but doesn't really work. Godard's American private eye saves the world with poetry.
2-3. This is a really hard movie to approach because honestly most of it is world-building and bald, philosophical exposition. There's very, very little conflict up until the end when the movie finally spins fully off into abstractly expressionistic visuals, gun violence, and direct philosophical confrontations. Even if the ideas (of which there are many) turn you on, its base is fairly flawed.
Alphaville is a movie about a dystopian totalitarian nation, ruled by a machine, where all the emotions are banned, like poetry and love; questioning the "unquestionable" it is, as well, not allowed and some words are completely forbidden. The concept of "the big brother is watching you" by George Orwell is completely there.
Under Alphaville's notion that a society based on technocratic efficiency will lead to a totalitarian state lies embedded JLG's greatest idea. In his dystopia the cinema is a thing of the past: "The old cinerama museums." "Mr. Nosferatu ... that man no longer exists." Yet in the end, it's a hero out of the movies (Lemmy Caution) that saves the day, suggesting that there is actually no longer a world without cinema.
Perhaps because I am a person of science and logic, Godard comes across as more oppressively didactic than Alpha 60. Instead of the romanticism everyone cites, I see only irony and vacuous thought in "je vous aime". Words have been stripped of more meaning than from the dictionaries of Alphaville. The ideas are grand but the execution is a bit lacking. Not something I would want to see again.