To prepare for her look and diction in the pre-Partition drama 'Kalank', actor Alia Bhatt turned to classic films such as 'Mughal-E-Azam', 'Umrao Jaan' and hit Pakistani drama 'Zindagi Gulzar Hai'. Alia said her director, Abhishek Varman told her to watch the show, which featured her 'Kapoor & Sons' co-star Fawad Khan and Sanam Saeed.