It was a brazen case of daylight robbery. In 1985, a couple walked into an art gallery on the campus of the University of Arizona and left 15 minutes later with a rolled-up Willem de Kooning shoved up the man’s jacket. In 2017, the painting was finally recovered – not by the FBI, but by a trio of house clearance guys in New Mexico. It had been hanging for 30 years on the bedroom wall of retired teachers Rita and Jerry Alter.

How an ordinary couple like the Alters pulled off one of the biggest art heists of the 20th century is told in this mostly entertaining documentary. You can imagine the story being turned into a podcast and it’s perhaps stretched a little thin for a full-length documentary. (Did we really need an interview with the couple’s nephew’s son?) The weak link is the film’s dramatisation of the theft: a tongue-in-cheek pastiche that feels a bit glib as questions about the Alters’ motivations deepen and darken. Still, the film offers a fascinating glimpse into the mystery of other people, especially other people’s marriages. Friends and family still look dazed that the Alters – Rita and Jerry! – were behind the theft.