A generation of future physicists will one day point to Christopher Nolan’s labyrinthine leviathan of a movie Tenet (A) as inspiration for scientific study. An international espionage thriller with the director’s signature flourish of temporal mystery, this movie is epic and and presents puzzles within riddles in a plot near impossible to diagram. Although some viewers may find the film’s story points and tone impenetrable and running time interminable, it’s a glorious dish of the director’s genius. Plus there’s nonstop action including at least three “I don’t know how they did that” stunt sequences involving planes, automobiles, recreational watercraft, a fire truck and a plutonium mountain. The acting ensemble is consistently engaging including a wonderful John David Washington as a low-key charmer in the titular protagonist role of a CIA agent and Kenneth Branagh in a career-best part as a diabolical arms dealer. Elizabeth Debicki, Robert Pattinson and Aaron Taylor-Johnson all add delightful performances after continued art house ascent into big league blockbuster territory. Ludwig Göransson also provides a gripping and persistent score and the effects and globetrotting set pieces are terrific. This spy spectacle indeed implores viewers to see it safely on a big screen.