Ae Dil Hai Mushkil goes seamlessly from a boisterous first half marked by nightclub numbers and Hindi film ditties (Gaata Rahe mera dil, Tohfa tohfa laya laya, Baby doll main sone di) to a more intense second segment propped up by Aaj jaane ki zid na karo and Mujhse pehli si mohabbat mere mehboob na maang. ADHM is by far Karan’s best film to date: mature, sure-handed and thoroughly entertaining.