As an educational film, D-Day 3D does the job. It explains the who, what, when, where, why, and how of the invasion—literally; the film is broken up into chapters for each of those questions—and it does so clearly and (since Tom Brokaw is narrating) authoritatively. It's not especially entertaining, and the animation at times feels cheap, but you leave the movie knowing a hell of a lot more about the most pivotal day in World War II than you did when you went in. That's what you expect out of a 45-minute IMAX movie, and that's exactly what you get. by Paul Constant