Deepika Padukone was spotted shooting for her upcoming film 'Cocktail' (the title has been finalized) at a nightclub in London.Reportedly she was dancing to a remix to 'Rolling in the Deep' by Adele.The first promo will be launched tomorrow.Are you guys excited? This movie is gonna be a love triangle between Saif Ali Khan,Deepika Padukone and Diana Penty.It has been written by Imtiaz Ali.