Atomic Energy. This 1947 Encyclopedia Brittanica film explains the basics of atomic energy through animation and narration. Though somewhat dry, it explains its points well and in a way that is easy to understand, making it quite successful as an educational film. It begins and ends with big ol’ mushroom clouds for added excitement, and the chilling statement, “What lies ahead, no man knows.” Amen. Ratings: Camp/Humor Value: ***. Weirdness: ***. Historical Interest: ****. Overall Rating: ****.