The methods that McLaren used in making his films involved multiple manipulations of original elements in order to create simple colour separations. With repeated passes through the optical printer, the elements became damaged over successive generations, resulting in a 35 mm internegative that was far from pristine. McLaren was well aware of these shortcomings and most likely never achieved the image quality he was striving for. With today's computer-based technologies, we could certainly have produced near-perfect copies of most of his films, but for the sake of historical authenticity, we have resisted this temptation. Reason for Submission: It was thus the NFB's responsibility to ensure that Mclaren's work would be preserved and restored for the benefit of countless animation enthusiasts as well as for the general public here in Canada but throughout the world as well. All the preservation and restoration work allowed the NFB to ensure Mclaren's numerous films would continue to mesmerize audiences and simulate creators the world over. From a technical perspective, the many challenges encountered during this undertaking presented our image specialists with opportunities to hone their expertise and create a truly impressive and coherent rendition of Mclaren's work.