The company continued working on other projects until finally deciding on "Ra.One" (2011) starring Khan himself, Kareena Kapoor and Arjun Rampal. The pre-production work began in 2007 after the release of "Om Shanti Om". The film's crew consisted of more than 5,000 members from India, Italy and the US, and was pieced together by more than 1,000 people, working in shifts, in around 15 studios across the world. It saw the inclusion of several visual effects techniques being incorporated in the production which were carried out by Red Chillies VFX. With an estimated budget of 1.25 billion, "Ra.One" was the second-most expensive film ever produced in Indian cinema, and the most expensive Bollywood film. The film witnessed a level of publicity campaigning previously unseen in India films, with marketing taking place over a period of nine months and involving major brand tie-ups of a 52 crore (US$9.88 million) which set the record for the largest marketing budget in India. Shah Rukh Khan decided to dedicate Ra.One to his friend and former CEO Sanjiv Chawla, since he stepped down due to ill health.