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 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.