Pitt has recently claimed he quit marijuana when he became a dad in two separate interviews, insisting he couldn't look after his six kids with Angelina Jolie while under the influence.
Last week (ends14Aug09), he told TV commentator Bill Maher, "I'm a dad now. You want to be alert and my eyes used to glaze over when I did that.
But in an interview with radio host Howard Stern on Monday (17Aug09) Tarantino revealed Pitt provided him with some "pretty good" pot when they met to discuss their new movie Inglourious Basterds last year (08).
Tarantino told Stern, "He takes this brick of hash, whips out a knife, like Jesse James, and cuts me off a big slither. I go, 'Do you have a pipe to go with this?' And he handed me a Coke can!".