This one is pretty long...
One might say it's more of a Bollywood thing, but musical theatre is very popular in Japan. From modern musicals to anime-based works like Death Note: The Musical, the culture surroudning it is vast as it is spectacular. So it's no surprise that the wildly popular Attack on Titan was also set to have its own spin-off musical, scheduled to run for a couple months this past summer. However, the show was over before it even began, due to a fatal accident on set.
Kazutaka Yoshino, one of the acrobatics, was testing the stage wires that would be used for the action sequences of the show. However, it snapped mid-air, causing him to fall about thirty feet. He was rushed to the hospital, but unfortunately pronounced dead soon after arrival. The project was then cancelled.