The sexy tennis drama “ Challengers ” won the box office this weekend with $15 million in ticket sales, according to studio estimates Sunday.

Zendaya and castmates Mike Faist and Josh O’Connor have been on a globetrotting press tour to get the word out about Italian director Luca Guadagnino’s original film, which opened in 3,477 locations in the U.S. and Canada.

“We’re obviously very, very happy with the number,” said Kevin Wilson, who heads theatrical distribution for Amazon Studios and MGM. “Looking at the audience who showed up, it’s really encouraging. It’s not the easiest audience to get to theaters.”

Women made up 58% of ticket buyers, who also skewed younger overall: 41% were between the ages of 18 and 24.

Ticket sales from large format screens, including IMAX, made up about 40% of the opening weekend grosses. According to PostTrak exit poll reported by Deadline, 55% of audiences said they went to see the film because of Zendaya. In fact, this weekend, Zendaya movies accounted for around 26% of the overall box office with the re-release of “ Dune: Part Two ” in IMAX, which made nearly $2 million.