LOS ANGELES — "The Karate Kid" has won a 1980s showdown at the box office against "The A-Team."

Sony's remake of 1984's "The Karate Kid" debuted at No. 1 for the weekend with a whopping $56 million, according to studio estimates Sunday. The big-screen adaptation of the 1980s TV series "The A-Team" came in at less than half that.

After three weekends at No. 1, DreamWorks Animation's "Shrek Forever After" slipped to No. 3 with $15.8 million. The animated hit raised its domestic haul to $210.1 million, becoming the fourth movie this year to top $200 million.

With a relatively modest production budget of $40 million, "The Karate Kid" far exceeded the studio's expectations. Early on, Sony executives would have been happy if the movie opened to half its $56 million debut weekend, said Rory Bruer, the head of distribution.

Estimated ticket sales for Friday through Sunday were:.

1. "The Karate Kid," $56 million.

2. "The A-Team," $26 million.

3. "Shrek Forever After," $15.8 million.

4. "Get Him to the Greek," $10.1 million.

5. "Killers," $8.2 million.

6. "Prince of Persia: The Sands of Time," $6.6 million.

7. "Marmaduke," $6 million.

8. "Sex and the City 2," $5.5 million.

9. "Iron Man 2," $4.6 million.

10. "Splice," $2.9 million.