In ARUSI Persian Wedding, Marjan Tehrani trails her brother Alex and his wife Heather as they prepare to wed in Iran. In fact, the couple is wed twice in the film—making it thrice in total. One wedding is in preparation—so they may travel as husband and wife—and the traditional ceremony that ends the film, which is the point of the documentary, is the couple's second on-screen wedding.
Tehrani touches ever-so-briefly on themes that would have given the movie more impact had they been explored further.