Recently we were amazed by the news that Saif Ali Khan has signed Oscar-winning actress Natalie Portman for his next film but the hero has revealed that he was just joking. However, this joke has proved expensive and landed the Cocktail star in a legal trouble. According to reports, the Hollywood actress is not happy with Saifs joke and has sent a legal notice to him asking for an explanation. Clarifying about the news, the Bollywood actor-producer said on Saturday, "It was a joke. I'm sorry. I'm just annoyed with speculation on all aspects of my life. I might just start making up stories to entertain myself". However, the star didnt inform anything about the notice.