Planet Money did an episode about this, The Spiderman Problem: https://www.npr.org/2022/01/28/1076531156/the-spider-man-problem https://www.npr.org/2022/01/28/1

Planet Money did an episode about this, The Spiderman Problem: https://www.npr.org/2022/01/28/1076531156/the-spider-man-problem https://www.npr.org/2022/01/28/1076531156/the-spider-man-pro... Short story is that Marvel licensed Spiderman for cheap with a clause that Sony could keep the license so long as they produced a movie every N years.