James Gunn’s “Superman” showed staying power in its second weekend at North American box offices, collecting $57.3 million in ticket sales and remaining the No. 1 movie in cinemas, according to studio estimates Sunday.
None of the week's new releases — “I Know What You Did Last Summer,” “Smurfs,” and “Eddington” — came close to touching Warner Bros. and DC Studios’ superhero success. “Superman” dipped 54% from its domestic opening, an average decline for a big summer film.
