By Ben Adair, Ayala Ben-Yehuda • 43 minutes ago 2106_-_seg_b_-_seg_3_-_brad_pitt.mp3 Quentin Tarantino’s screenplays are famously foul-mouthed and broadcast-unacceptable. So if you happen to watch Brad Pitt’s Oscar-nominated performance in “Once Upon a Time… in Hollywood” on TV or on an airplane, you may not be hearing his actual voice the whole time. We talked to an actor named Mark Sussman who specializes in dubbing over the smutty lines of Brad Pitt.