High Quality Content by WIKIPEDIA articles! Ivana Chubbuck is an acting coach and author and is the founder and director of the Ivana Chubbuck Studio. Her students included Brad Pitt, Halle Berry, Terrence Howard, Elizabeth Shue, Catherine Keener, Djimon Honsou, America Ferrera, Eva Mendes, Kate Bosworth, Ian Somerhalder, April Bowlby and Glenn McCuen.