Per Box Office Mojo, Tenet played in 2,810 theaters this past weekend (presumably all of them taking proper precautions and following safety protocols), and the final figures show that the film made $20.2 million. Obviously there is an asterisk to be applied given the larger circumstances of the moment, but the numbers make the movie Christopher Nolan’s third weakest domestic debut – with a silver lining being that it made more than both 2006’s The Prestige (which made $15 million) and 2000’s Memento (which made $235,000 in limited release).
Article source: https://www.cinemablend.com/news/2554116/tenet-box-office-christopher-nolans-thriller-debuts-modestly-as-theaters-start-to-reopen