An Oral History of Atlantis

In “Machine City,” a college student’s role in a friend’s movie causes lines to blur between his character and his true self. In “Slide to Unlock,” a man comes to terms with his life, via the passwords he struggles to remember in a moment of extremis.

And in “Weird Menace,” a director and faded movie star discuss science fiction, memory, and lost loves on a commentary track for a film from the ’80s that neither seems to remember all that well.