Swaggering into theaters across North America, Straight Outta Compton beat all expectations, grabbing an estimated $56.

1 million — and leaving The Man from U.

N.

C.

L.

E.

, the weekend’s other new wide release, which pulled in a meager $13.

5 million, in its dust.

Universal’s R-rated Compton, the biopic about the groundbreaking hip-hop group N.

W.

A.

, produced for just $29 million, posted a best-ever opening for its director F.

Gary Gray and overshadowed other rap movies like Eminem’s 8 Mile, which bowed to $51.

2 million in 2002 andNotorious, the story of Notorious B.

I.

G.

, which opened to $20.

5 million in 2009.

Produced by Universal and Legendary, the film stars O'Shea Jackson Jr.

as his real-life father, Ice Cube, Corey Hawkins as Dr.

Dre, Jason Mitchell as Eazy-E, Aldis Hodge as MC Ren and Neil Brown Jr.

as DJ Yella.

Opening in 2,767 theaters, it was produced by former N.

W.

A members Ice Cube and Dr.

Dre (among others).

Ice Cube, the producer, managed to beat his own best-opening as a lead actor, 2014’s Ride Along, which opened to $41.

5 million.

The latest in a string of number one openings from Universal, the movie also boosted the studio’s 2015 domestic gross above the $2 billion mark in the shortest amount of time in a calendar year that any studio has ever hit that mark.

Warner Bros.

PG-13-rated period spy tale The Man From U.

N.

C.

L.

E.

didn’t strike much of a nostalgic chord among moviegoers as it was unveiled in 3,638 locations.

The movie, which cost $80 million-plus to produce, arrived in third place, behind the more muscular spy outingMission Impossible - Rogue Nation.

Directed by Guy Ritchie, the film, from Warners and Davis Entertainment, stars Henry Cavill and Armie Hammer as a CIA agent and a KGB operative who work on a joint mission against a mysterious criminal organization.

Among the movies entering their second weekend, Fox's superhero reboot Fantastic Four dropped by a steep 69 percent, taking in $8 million to bring its cumulative purse to $41.

9 million as it settled into the fourth place slot.

In fifth place, STX's thriller The Gift had a better hold, dropping 45 per cent as it collected $6.

5 million, bringing its take to $23.

6 million.

And in ninth place, Sony's Ricki and the Flash, starring Meryl Streep, held on with just a 31 percent drop as it attracted $4.

6 million, bringing its cume to $14.

7 million.

On the specialty front, Fox Searchlight launched Mistress America, Noah Baumbach's latest comedy starring Greta Gerwig, which took in $94,000 in four theaters, an encouraging $23,500-per-theater average.

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