Francois Duhamel/ TWC 2009Brad Pitt did not grow a mustache in vain.
Inglorious Basterds, Quentin Tarantino's own personal World War II starring Pitt and the actor's adorned lip, routed the weekend competition with an estimated $37.6 million gross.
The take marked the biggest opener of Tarantino's career, and one of the biggest of Pitt's.
Elsewhere, District 9 fell to second, but piled on another $18.9 million.
Stay tuned for the complete box-office standings.