what is the iron claw based on

The Iron Claw is an upcoming biographical sports film based on the life of professional wrestler Kevin Von Erich and the Von Erich family). The film follows the rise and fall of the Von Erich family, a dynasty of wrestlers who made a huge impact on the sport. The Iron Claw is a signature wrestling move that was created by Fritz Von Erich, the father of the Von Erich family, in the 1950s. The move involves spreading the hand over an opponents face and then squeezing. Fritz Von Erich used the move during his wrestling matches and it became his signature move. The Iron Claw is also featured in the film, and Holt McCallany, who plays Fritz Von Erich, is shown using the move.