One of the misleading points in the DVD was that Russell originated the 1914 idea. In fact, the calculation of the 2520 years had originated with William Miller, and Nelson Barbour has pinpointed 1914 as "the date" in the "Herald of the Morning" magazine at least a few months before Russell read his first issue of the "Herald of the Morning".
They do show a picture of Russell standing in front of a pyramid chart which makes a good discussion point.