Wow - a great video for putting human evolution in perspective:
"Evolution in 60 seconds", counting down from the beginning of life to the present day. Excellent for getting a sense of the overall timescale, and of when things like mammals and birds appeared on the scene.
My only criticism is that the focus on primates/humans could perpetuate the myth that evolution was somehow working towards humans as an end point, which is of course false. They could just as easily have counted down to the evolution of aardvarks!
Having said that, from a teaching point of view it would be great to see a similar video just on human origins for the past 8 million years or so, like the Smithsonian Institution's interactive timeline.