Now, Los Angeles moviegoers can finally answer the age-old question: Is that "BWAAAMP" a movie's sound design, or a car horn? Christopher Nolan's Tenet, the hit blockbuster that's semi-sweeping the nation based on what theaters are allowing people inside due to a global pandemic, will finally be able to semi-hit one major market. Los Angeles county movie theaters are remaining closed at the moment, due to health regulations. Meaning, simply: LA folks haven't seen, and can't see, Tenet... until now. Per The Hollywood Reporter, Tenet will now be opening in several Los …