Peter Debruge Chief Film CriticIn what’s shaping up to be the strangest weekend yet since the coronavirus outbreak forced American theaters to close, the biggest release is Beyoncé’s visual album, “Black Is King,” a visionary feature-length companion to her 2019 album, in the tradition of “Lemonade.”A number of studio movies — including Christopher Nolan’s “Tenet” — had tentatively planted their flag on July 31, only to delay amid the latest spike of infections.