Marvel’s “Thunderbolts” and Ryan Coogler’s “Sinners” are dominating the North American box office charts again.

With no new nationwide event pic on the marquee, Marvel Studios' ensemble superhero pic easily stayed No. 1 in its second weekend. 'Friendship' makes plenty of pals at the specialty box office.

What kind of staying power will "Thunderbolts" have at the box office? That's the big question after the film's second weekend, where "Thunderbolts" collected $34 million overseas and $67.1 million globally.