Warner Bros. has released not one, but two new Tenet posters confidently promoting its new August release date. To help seal the deal, each of the new posters features Tenet star John David Washington and his "twin", the latter of which sports an oxygen mask which — if I've been interpreting the very murky trailers correctly — has something to do with the idea of time inversion central to the plot. These new Tenet posters are nothing if not jazzy. And look, if I can't sit safely in an air-conditioned theater for two-plus hours watching Christopher Nolan lay …