OK. The crew almost killed themselves in a freak fire accident - but the mission goes ahead. The crew lie in an interrogation - but the mission goes ahead. The commander's hubby has a stroke hours before launch - but the mission goes ahead. They make calls from the moon and space to mobile phones on earth - what? Great CGI but utterly unrealistic. There's no backup crew and although half the crew is untrustworthy, the mission still goes ahead - what?