Shazam is an upcoming film and the eighth film in the DC Extended Unikverse about Billy Batson becoming Shazam. A boy is given the ability to become an adult superhero in times of need with a single magic word.
Dwayne "The Rock" Johnson was originally considering taking the role of Captain Marvel. However, he was approached by comic books fans who explained the villain, Black Adam, to him in an attempt to persuade him to take that role instead. The combination of the fans' request and the fact that the character seemed more interesting prompted Johnson to take that role instead.