Taking to Instagram, Dwayne "The Rock" Johnson delivered a "very big package of gratitude" for fans helping to makeJohnson goes on to say that he's most thankful for the response from the audience, before stating that the film had a difficult production as it was initially struggling to tell 2 origin stories (for Black Adam and Shazam!) before the decision was made to save Black Adam for his own solo film. Johnson then revealed thatis a project that's "" for nearly 10 years and that cameras should start rolling in "There's a lot more from Rock in the video below as he details the development ofso be sure to give it a watch and then share your thoughts in the comment section below.