Secret Meaning at the beginning of Tenet

Terrifying on Instagram: "In 2020, during the production of his film Tenet, director Christopher Nolan orchestrated one of the largest practical stunts in cinematic history: crashing a real Boeing 747-400 jetliner into a building. The sequence was filmed at the Tucson International Airport in Arizona in late 2019. Nolan and his team determined that purchasing and crashing an actual retired aircraft was more cost-effective and would yield greater realism than attempting to recreate the destructio