Factual error: This line of thinking is repeated twice, once by the NASA scientist and once by the Tommy Lee Jones character: "To get to the moon, you only have to go halfway - gravity will take you the rest of the way". Actually, since Earth's gravity is 6 times greater than the moon's, you would have to go 6/7ths of the way, otherwise you return to Earth.
Question: What are the chances of four guys of their age ACTUALLY passing the physical to the required standards? I know they all kept reasonably fit but they struggled with running etc. so it seems unlikely they would pass all the tests. I know movie rules dictate suspense of disbelief to a certain degree, I'm just wondering what their chances would be in reality.The_Iceman