Zendaya's 'Challengers' tops US box office

The tennis-based romance "Challengers" opened this weekend atop the North American box office, taking in an estimated $15 million behind positive reviews and the powerful net game of actor/singer Zendaya. The 27-year-old actress has been part of some of the most successful franchises of the last few years, including the "Spider-Man" and "Dune" movies.