Memorial Day weekend typically sets the standard for summer box office sales, and the successful opening for “Thunderbolts*” is the start of an impressive holiday box office, experts say.

All eyes had been on whether “Thunderbolts” — a team-up of antihero rejects similar to “Avengers” – could restore the Walt Disney Co. superhero factory to the kind of box office performance the studio once enjoyed so regularly.

Marvel's 'Thunderbolts*' is opening on top of the domestic box office, while Ryan Coogler's "Sinners" is having another great hold.