LOS ANGELES -- Ridley Scott's space horror film "Alien: Covenant" scared reigning box office champ "Guardians of the Galaxy Vol. 2" out of the No. 1 spot over the weekend -- but just barely.

"Alien: Covenant," a sequel to 2012's "Prometheus," opened with $36.2 million, pushing "Guardians 2" to second place with $34.7 million in its third weekend in theatres.

The teenage romance "Everything, Everything," meanwhile, bowed in third place with $11.7 million. Holdovers "Snatched" and "King Arthur: Legend of the Sword" rounded out the top five with $7.8 million and $7.2 million, respectively.

The top 20 movies at U.S. and Canadian theatres Friday through Sunday, followed by distribution studio, gross, number of theatre locations, average receipts per location, total gross and number of weeks in release, as compiled Monday by comScore:

1. "Alien: Covenant," 20th Century Fox, $36,160,621, 3,761 locations, $9,615 average, $36,160,621, one week.

2. "Guardians of the Galaxy Vol. 2," Disney, $34,653,754, 4,347 locations, $7,972 average, $301,391,228, three weeks.

3. "Everything, Everything," Warner Bros., $11,727,390, 2,801 locations, $4,187 average, $11,727,390, one week.

4. "Snatched," 20th Century Fox, $7,832,517, 3,511 locations, $2,231 average, $33,015,117, two weeks.

5. "King Arthur: Legend of the Sword," Warner Bros., $7,152,269, 3,702 locations, $1,932 average, $27,503,490, two weeks.

6. "Diary of a Wimpy Kid: The Long Haul," 20th Century Fox, $7,126,084, 3,157 locations, $2,257 average, $7,126,084, one week.

7. "The Fate of the Furious," Universal, $3,234,040, 2,287 locations, $1,414 average, $219,944,340, six weeks.

8. "The Boss Baby," 20th Century Fox, $2,848,253, 2,071 locations, $1,375 average, $166,200,803, eight weeks.

9. "Beauty and the Beast," Disney, $2,545,579, 1,792 locations, $1,421 average, $497,924,628, 10 weeks.

10. "How to Be a Latin Lover," Lionsgate, $2,051,180, 948 locations, $2,164 average, $29,309,990, four weeks.

11. "Lowriders," OTL Releasing, $1,183,600, 365 locations, $3,243 average, $4,211,985, two weeks.

12. "Gifted," Fox Searchlight, $766,765, 824 locations, $931 average, $22,900,823, seven weeks.

13. "Going in Style," Warner Bros., $600,081, 690 locations, $870 average, $43,372,898, seven weeks.

14. "Baahubali: The Conclusion," Great India Films, $599,085, 236 locations, $2,538 average, $19,997,556, four weeks.

15. "Smurfs: The Lost Village," Sony, $572,562, 652 locations, $878 average, $43,064,566, seven weeks.

16. "Norman: The Moderate Rise and Tragic Fall," Sony Pictures Classics, $565,664, 373 locations, $1,517 average, $2,273,140, six weeks.

17. "The Circle," STX Entertainment, $451,218, 647 locations, $697 average, $20,030,002, four weeks.

18. "Born In China," Disney, $371,765, 575 locations, $647 average, $13,137,812, five weeks.

19. "The Lovers," A24, $274,050, 105 locations, $2,610 average, $528,495, three weeks.

20. "Get Out," Universal, $245,135, 262 locations, $936 average, $174,939,840, 13 weeks.