I believe it starred OJ Simpson, as one of three astronauts that are about to lift off to go to the moon, when at the last moment are pulled from the craft and sent to a facility.
I dont remember why they were taken off. But in the meantime everyone thinks they have actually gone to the moon.
The three decide to escape and do a runner, causing the military to go after them. They get in light plane which crashes in the desert where they go their seperate ways to increase thier chances of letting everyone know what really happened.