John Glenn was not popular with the other astronauts. Glenn was the backup pilot for Shepard and Grissom on the first two manned Project Mercury flights, the sub-orbital missions Mercury-Redstone 3 and Mercury-Redstone 4. Glenn was selected for Mercury-Atlas 6, NASA's first manned orbital flight, with Carpenter as his backup. Putting a man in orbit would achieve one of Project Mercury's most important goals. Shepard and Grissom had named their spacecraft "Freedom 7" and "Liberty Bell 7". The numeral 7 had originally been the production number of Shepard's spacecraft, but had come to represent the Mercury 7. Glenn named his spacecraft, number
John Glenn (screenwriter) John Glenn (screenwriter) John Patrick Glenn is an American screenwriter, producer, and director. Glenn was born in Tuscaloosa, Alabama and worked as a musician prior to moving to Los Angeles. Glenn began his screenwriting career in 2000, selling the spec script for the film Red World to Jerry Bruckheimer and Walt Disney Pictures. Subsequently, Glenn worked on films including "Journey to the Center of the Earth" with producer Richard Zanuck, "Clash of the Titans" with producer Adam Schroeder and "Law Abiding Citizen" with director F. Gary Gray. In 2008, he wrote the original draft for the Steven Spielberg produced feature