In the late 1990s, a relatively small group of men and women, mainly in Hollywood, had the radical idea of reinventing the motion picture business, a business that had been working successfully for more than one hundred years. Twenty years ago this month, Digital Cinema Report began reporting on that effort and chronicled one of the most amazing transitions in history. The changes did not happen easily or quickly and there were many people opposed to the very idea. But there’s no need here to rehash every battle; this is not a history. Rather, this is what five motion picture industry leaders and I think were the top twenty most significant developments in making that change a reality. For weeks we asked readers to tell us what they thought belonged on the list, and from that list we chose the final twenty. In addition to me, the judges, in alphabetical order were Tom Bert, director of cinema technology, Barco; Brock Bagby, executive vice president, chief content and development officer, B&B Theatres; Cedric Lejeune, vice president of technology, EclairColor; Loren Nielsen, vice president, content and strategy, Xperi Corporation; and Leon Silverman, advisor, 2030 Vision, strategy and industry relations, MovieLabs. Here then is Digital Cinema Report’s Twenty-Twenty.