Editing 70 mm film (section)

===70&nbsp;mm 3D early use===
The first commercial introduction of 70&nbsp;mm single projector 3D was the 1967 release of ''Con la muerte a la espalda'', a Spanish/French/Italian co-production which used a process called Hi-Fi Stereo 70, itself based on a simplified, earlier developed Soviet process called Stereo-70. This process captured two anamorphic images, one for each eye, side by side on 65&nbsp;mm film. A special lens on a 70&nbsp;mm projector added polarization and merged the two images on the screen. The 1971 re-release of [[Warner Bros.]]' ''[[House of Wax (1953 film)|House of Wax]]'' used the side-by-side StereoVision format and was distributed in both anamorphically squeezed 35&nbsp;mm and deluxe non-anamorphic 70&nbsp;mm form. The system was developed by [[Allan Silliphant]] and [[Chris Condon]] of StereoVision International Inc., which handled all technical and marketing aspects on a five-year special-royalty basis with Warner Bros. The big screen 3D image was both bright and clear, with all the former sync and brightness problems of traditional dual 35&nbsp;mm 3D eliminated. Still, it took many years more before IMAX began to test the water for big-screen 3D, and sold the concept to Hollywood executives.