Aquaman and the Lost Kingdom's opening weekend is plummeting below expectations. The movie is the first direct sequel to the 2018 smash hit Aquaman, which remains the highest-grossing installment in the DC Extended Universe. It features the return of Aquaman (Jason Momoa), most recently seen in the post-credits sequence of The Flash, as he teams up with his untrustworthy half-brother Orm (Patrick Wilson) to take down the returning villain Black Manta (Yahya Abdul-Mateen II).
https://screenrant.com/aquaman-2-movie-box-office-opening-report/