The storyline has a lot in common with the story "By His Bootstraps" written bij Robert A. Heinlein. The paradox of a person from the future telling something to his earlier self is called an ontological or 'Bootstrap' paradox, after the story from Heinlein. See more

Goofs

Contrary to the comment before, "Creep", sung by Wagner Moura, does not represent an anachronism. The song does not play at the party itself. Instead, it was used in two scenes to match the feelings that Zero was experienced at the time. Any song composed until then (2011) could have been included in the soundtrack, as long as it did not play at the party. See more