The trailer of much-awaited film 'Love Aaj Kal' is finally out. Bollywood actors Kartik Aaryan and Sara Ali Khan attended the event in Mumbai. Sara wore an embellished silver crop top with neon green skirt at the launch event. Kartik opted for a quirky black jacket, orange tee paired with denims for the event. 'Love Aaj Kal' is directed by Imtiaz Ali. It is a sequel of 2009 same name film starring Saif Ali Khan and Deepika Padukone.