Vidya Balan has walked out UTV Motion Pictures' Hook Ya Crook.The film, which is directed by David Dhawan and also stars John Abraham is now facing uncertainty. A Source has revealed: "Vidya is not doing UTV's Hook Ya Crook. Also Vidya felt that after Salaam-E-Ishq, she and John needed to do a film which had substantial roles for both.She had reservations as Dhawan's heroines don't have much to do except sing, dance and look glamorous. She voiced her concern to the director who promised to make changes in her role. Vidya wants to do more women-oriented roles."Supposedly when David came back to her with the same role, and only a few minor alterations, Vidya decided not to continue.The source also added, "Vidya doesn't want to protest too much as she doesn't want to upset David, so she has quietly opted out though the producer and David are insisting that Vidya is still doing it."The Bolly star is currently shooting in Wai and was unavailable for comment on this latest news, but her agent has revealed: "Vidya is not doing the film, but it's because she doesn't have the dates."