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.

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

The latest MCU film broke no records, but it could outperform recent Marvel movies that crumbled after big openings.