The action drama "Chappie" debuted at No. 1 in this weekend's rather lackluster box office results, taking in an estimated $13.3 million.

Last week's No. 1, "Focus", starring Will Smith, fell to second place with $10 million, a 46% drop from its opening weekend, and  "The Second Best Exotic Marigold Hotel" debuted in third place with $8.6 million.

The top ten:

1. "Chappie", $13.3 million

2. "Focus", $10 million

3. "The Second Best Exotic Marigold Hotel", $8.6 million

4. "Kingsman: The Secret Service", $8.3 million

5. "The SpongeBob Movie: Sponge Out of Water", $7 million

6. "Fifty Shades of Grey", $5.6 million

7. "McFarland USA", $5.3 million

8. "The Lazarus Effect", $5.1 million

9. "The DUFF", $4.8 million

10. "Unfinished Business", $4.8 million

Figures courtesy of Boxofficemojo.com