Keanu Reeves addresses digital movie debate in documentary
6 September 2012 Last updated at 06:20 BST
In the past few years digital technology has radically changed the way in which films are shot, edited and projected.
But not every filmmaker is happy with the digital revolution that has swept the industry - including some major practitioners of the craft.
Produced and presented by movie star Keanu Reeves, new documentary Side by Side sees top names in the film world discuss the pros and cons of digital filmmaking.
Talking Movies' Tom Brook reports.
Talking Movies is broadcast on BBC World News on Saturday at 1330 GMT and Sunday at 0030, 0730 and 2030 GMT.