Director Judd Apatow videotaped his actress wife Leslie Mann drunk to show her how obnoxious to be when playing intoxicated on film.

Apatow cast Mann as a drunk in The 40 Year-Old Virgin.

He tells MTV.com, "When we were doing the drunk scene, she was like, 'I don't want to play some generic drunk girl. What can we do?'

"And I said, 'Why don't you go get drunk with Seth. Seth will videotape it, and tomorrow we'll look at the tape and you'll see what you're really like when you're drunk.'

"The funny thing she said afterwards was, 'All these years when I was drunk I thought I was acting cute, but I'm so obnoxious!' So she took a little bit of her own attitude there."