The relationship between Cirque du Soleil and the film began with the Oscars. As early as 2002, they were invited to perform at the 74th Academy Awards. That performance was a great success, and also contributed to Cirque du Soleil's later work, "IRIS Cinematic World Tour". The film premiered at the Tokyo International Film Festival on October 20, 2012, and the 3D effects in the film were highly praised by film critics. This is the film's starring, Erica - Linz's screen debut. Linz has been training and performing at Cirque du Soleil for the past ten years. For the film's producer, James Cameron, who is also known as a "tech madman", it has been a long-standing dream to bring Cirque du Soleil's fantastic performances to the big screen in 3D. However, this time the filming was completed after overcoming various difficulties. The crew not only filmed their rehearsal scenes, but also part of the footage in the film was taken from the live performance of Cirque du Soleil, but the crew at the scene of the performance could only fix the camera in a circle to shoot, and the shooting angle was greatly limited. Because in Cirque du Soleil's high-altitude performances, sometimes the actors will be 90 feet in the air to perform,
so the crew's photographers had to capture from a hundred feet above the ground to capture these amazing high-altitude performances at close range. The pursuit of perfect 3D effects also brought many challenges to shooting. In order to ensure the safety of the performers, the various complex equipment and underwater shooting cameras of the crew must strictly meet the corresponding specifications before they can be used. In addition, in order not to hinder the performance, the control of the camera with the robotic arm is also limited. In view of many shooting obstacles, the filming process of the crew is sometimes fast and sometimes slow. Even so, the crew managed to finish the film in just 37 days.
The entire filming process is divided into three stages: the crew first started filming in Las Vegas from October to November 2010, then the crew arrived in New Zealand with Cirque du Soleil in December to continue filming, and finally returned to Las Vegas in February 2011 s. With great performances and rehearsals from the circus, these live shots are gorgeous and magical with little to no CGI processing. When Cameron first told the circus actors that the performance would be made into a movie, everyone was dismissive. But when these actors, who perform twice a day, five days a week, watch their daily work presented in 3D on the big screen, everyone is stunned. The production team initially considered Barton, who had worked with director Adamson on the soundtracks of "Shrek" and "Narnia" series. Composer Benoit Jules, who performed the soundtrack, created the soundtrack for the film and the background music used for the circus performance in the film
