Inception articulate some of the things that have been swirling around his head for the last eight years." DiCaprio and Nolan spent months talking about the screenplay. Nolan took a long time re-writing the script in order "to make sure that the emotional journey of his character was the driving force of the movie." On February 11, 2009, it was announced that Warner Bros. purchased "Inception", a spec script written by Nolan. Principal photography began in Tokyo on June 19, 2009, with the scene where Saito first hires Cobb during a helicopter flight over the city. The production moved to the
Inception secure the film's $100 million in advertising expenditure. "Inception"s première was held in London on July 8, 2010; it was released in both conventional and IMAX theaters beginning on July 16, 2010. "Inception" grossed over $828 million worldwide, becoming the fourth highest-grossing film of 2010. The home video market also had strong results, with $68 million in DVD and Blu-ray sales. "Inception" opened to acclaim from critics, who praised its screenplay, visual effects, score, and ensemble cast. It won four Academy Awards for Best Cinematography, Best Sound Editing, Best Sound Mixing, and Best Visual Effects, and was nominated for four