”I love being badass. Hell, yeah!” exclaims Jada Pinkett Smith, who buffed up to play the Matrix-fighting Captain Niobe in 2003’s The Matrix Reloaded and The Matrix Revolutions. Now on screen as Don Cheadle’s frustrated wife in the 9/11 drama Reign Over Me, the actress, 35, almost didn’t get her warrior experience. ”The first time I read the script, they wanted [my husband] Will to play Neo. I was like, ‘Will, you’ve gotta do this movie, this is going to be huge!”’ But Mr. Smith was a no-go, and Mrs. Smith got the Wachowski brothers to write her into the sequels.