The original ending to the 1972 film Conquest of the Planet of the Apes. Arguably the best of the sequels to the original classic, the ending was altered to reflect a more positive and less gruesome end than the director originally envisioned. Conquest was originally intended to end the series back where the first movie, Planet of the Apes, began. Unfortunately the editing room changes led to a truly horrid sequel in Battle for the Planet of the Apes.
Anyway, because the video is hosted on YouTube, and the user disabled embedding, I can't actually upload the video. But, if you click on the image below you will be whisked away so you can watch for your own selves. Enjoy!