Actress Anushka Sharma, who has wrapped up shooting for her upcoming film "Zero", has thanked the cast and crew for being a support system in making the project wholeheartedly.Anushka on Wednesday tweeted: "39Zero39 is all heart. 39Zero39 is these two wonderful people and everything they have endeavoured to create." 39Zero39 is me going on this journey with them. What a pleasure it has been."She posted the message along with a photograph featuring Shah Rukh and director Aanand L. Rai on either side. The movie also features Katrina Kaif.Anushka added: "Big hug Aanand L. Rai and Shah Rukh Khan for your belief and to Katrina Kaif for being the amaze one that she is! 39Zero39 wrap.""Zero" is a story that celebrates life. Its first look featured Shah Rukh Khan as a vertically challenged man.The movie is slated to release on December 21.