Oppenheimer
Nolan didn't waste a second of the 3hr runtime. Stunning visuals and a comprehensive narrative. You might want to brush up on your history before watching and there are some minor issues I had with the editing but the big loss was underwritten/undeveloped female characters which seems to be a theme for Nolan. Still, Oppenheimer is a towering achievement not only for those directly involved but for the world of Cinema as a whole.