Los Angeles ? The war effort by Quentin Tarantino and Brad Pitt has paid off as their history lesson “Inglourious Basterds” claimed victory at the box office with a $37.6 million debut.

It was Tarantino’s best opening ever, exceeding the $25.1 million haul for 2004’s “Kill Bill — Vol. 2.” Overseas, “Inglourious Basterds” added $27.5 million in 22 countries, giving it a worldwide total of $65.1 million.

Released domestically by the Weinstein Co. and overseas by Universal, “Inglourious Basterds” features Pitt and an international ensemble in a sprawling tale of Jewish commandos and a plot to take out Nazi leaders at a movie premiere during World War II.

The film provided a much-needed hit for Harvey and Bob Weinstein, who have managed only lackluster receipts at their new outfit since departing Disney-owned Miramax four years ago.

At Miramax, the Weinsteins balanced prestige and profit with a string of Academy Awards triumphs such as “Shakespeare in Love” and “Chicago” and hits such as Tarantino’s “Pulp Fiction” and the “Scary Movie” and “Scream” franchises.

Estimated ticket sales for Friday through Sunday at U.S. and Canadian theaters, according to Hollywood.com.

1. “Inglourious Basterds,” $37.6 million.

2. “District 9,” $18.9 million.

3. “G.I. Joe: The Rise of Cobra,” $12.5 million.

4. “The Time Traveler’s Wife,” $10 million.

5. “Julie & Julia,” $9 million.

6. “Shorts,” $6.6 million.

7. “G-Force,” $4.2 million.

8. “Harry Potter and the Half-Blood Prince,” $3.5 million.

9. “The Ugly Truth,” $2.9 million.

10. “Post Grad,” $2.8 million.