Director Imtiaz Ali says actor Sara Ali Khan, who stars in his latest Love Aaj Kal, was the "perfect" choice to play the lead character of Zoe. The film is a follow-up to Imtiaz's 2009 movie of the same name, featuring Saif Ali Khan and Deepika Padukone. The new movie with Kartik Aaryan and Saif's daughter Sara also explores two stories set in different time periods.

The director said Sara has the ability to reinvent the definition of the conventional Indian heroine. "Zoe's character is special to me. She is an emotionally fragile modern-day girl who tries to protect her feelings by being hard on the outside. She is conflicted between her heart and mind, between professional ambition and romantic surrender.