While for Katrina Kaif, the storyline of u00c3u00a2u00c2u0080u00c2u0098Fitooru00c3u00a2u00c2u0080u00c2u0099 was a good reason to sign the flick, Bollywood actor Aditya Roy Kapur reveals that he instantly signed the film when he got to know that his co-star is going to be gorgeous Katrina Kaif.