LOS ANGELES — Audiences were more than curious to check out the big-screen adaptation of the racy phenomenon “Fifty Shades of Grey” this weekend. The erotic R-rated drama sizzled in its debut, earning an estimated $81.7 million from 3,646 theaters in its first three days, distributor Universal Pictures said on Sunday.

In addition to destroying Valentine’s and Presidents Day weekend records, “Fifty Shades of Grey” has also become the second-highest February debut ever, behind “Passion of the Christ’s” $83.9 million opening in 2004.

The chart-topping film cost a modest $40 million to produce. Starring Dakota Johnson and Jamie Dornan as Anastasia Steele and Christian Grey, it could be on track to earn over $90 million across the four-day holiday weekend.

“Our fondest wishes were realized,” said Universal’s President of Domestic Distribution Nick Carpou. Carpou was pleased that audiences in all size markets turned out to see the film despite weather challenges.

“We had a tremendous amount of interest from small-town exhibitors,” said Carpou, noting strong outings in the South. “That speaks to their patrons really wanting to see the film as soon as possible and be part of what everyone is talking about.” Estimated ticket sales Friday through Sunday at U.S. and Canadian theaters:

1. “Fifty Shades of Grey,” $81.7 million

2. “Kingsman: The Secret Service,” $35.6 million

3. “The SpongeBob Movie: Sponge Out of Water,” $30.5 million

4. “American Sniper,” $16.4 million

5. “Jupiter Ascending,” $9.4 million

6. “Seventh Son,” $4.2 million

7. “Paddington,” $4.1 million.

8. “The Imitation Game,” $3.5 million

9. “The Wedding Ringer,” $3.4 million

10. “Project Almanac,” $2.7 million.