When asked by a fan on Twitter if Shazam! connects to the DC Extended Universe of Man of Steel and Wonder Woman, Levi revealed that while it is a standalone effort, there are common threads linking director David Sandberg's movie to these films.
The movie is completely trackable on its own merit. That said, there a lot of fun little nods/homages/Easter eggs that can be enjoyed should one be caught up in the DCEU. 🤙 https://t.co/JrqbcSLbXN— Zachary Levi (@ZacharyLevi) December 15, 2018
"The movie is completely trackable on its own merit," Levi wrote to a fan on his Twitter, "That said, there a lot of fun little nods/homages/Easter eggs that can be enjoyed should one be caught up in the DCEU."
When the debut trailer and promotional images were released, fans already spotted Easter eggs that referenced Superman and Batman, and it was once rumored that Henry Cavill's Superman could make a cameo in the film. However, most of the DCEU references we've seen so far are minor things like newspaper clippings and t-shirts that show how Billy Batson is a part of the wider DCEU.
By all indications, it looks like Shazam! is poised to follow director James Wan's Aquaman, which acknowledges the events of Steppenwolf's invasion in Justice League but acts as a self-contained story regarding the King of Atlantis.
Arriving on April 5, 2019, director David F. Sandberg’s Shazam! stars Asher Angel as Billy Batson, Zachary Levi as Shazam, Mark Strong as Dr. Thaddeus Sivana, Djimon Hounsou as the ancient wizard Shazam, Grace Fulton as Mary Bromfield, Jack Dylan Grazer as Frederick “Freddy” Freeman, Ian Chen as Eugene Choi, Jovan Armand as Pedro Peña, Faithe Herman as Darla Dudley, Cooper Andrews as Victor Vásquez, and Marta Milans as Rosa Vásquez.