The cast of combatants is essentially the same, including the architect, Anthony Royal (Jeremy Irons), who presides over convocations of the building’s elites in a penthouse apartment accessible only by mise-en-abyme elevator where the amenities include a rooftop garden landscaped like the Grand Trianon grounds; Richard Wilder (Luke Evans), a bluff and brawny television producer who decides to make a cinema vérité documentary as chaos begins to envelop the building and has something of the quality of Oliver Reed in The Curse of the Werewolf (1961), turning more lycanthropic as the film goes on; and Charlotte (Sienna Miller), Laing’s single-mother upstairs neighbor, with whom he carries on a curt, somewhat formal affair.