Whenever I explain to friends my criteria for what counts as a five-star film on Letterboxd—a rating I rarely dish out—I put it like this: every film starts at three stars and shifts up and down as I watch. Four stars means you’re objectively good in my book; four-and-a-half stars means I had one little gripe I couldn’t shake, keeping you from being perfect. Five stars means you irreversibly changed how I view cinema as an art form. In all my years of watching anime, Redline is my forever five-star film. Whenever I’m running on empty and need a pick-me-up, I fall back on my three heavenly kings of racing movies: Mad Max: Fury Road , Speed Racer , and Studio Madhouse’s 2009 anime film thrillride, Redline . They’re the kinds of films I’d drop everything to watch, would give anything to experience for the first time again, and would levitate off the ground if I ever dared to watch them in the same evening. But of the three, Redline edges them out as the one that has me charged up all the way up.…