Back when the third entry in the original Apes film series (1971's Escape From the Planet of the Apes) was filmed, there was originally a pre-credit sequence filmed in which Cornelius, Zira and Dr. Milo flee the planet in Taylor's salvaged spacecraft. Then, as the climactic moments of Beneath are played out and Earth is destroyed, the shockwave propels the ape-o-nauts backwards in time where they are discovered by modern day humans once the craft re-enters the atmosphere. In the pages of Planet of the Apes Revisited (which is currently being revised), the late Don Taylor told authors Joe Russo, Larry Landsman and Edward Gross, "There's a lot of film somewhere. That's a whole day's worth of electronics and special effects. Smoke and gadgets blowing up. I don't know why we cut it. i guess we just didn't need it. In other words, it was the same old jazz."