When Erin Naird is cycling away from the dirt-bikes, there is a POV shot looking at the dirt-bikes. The amount of dust thrown up is clearly that of the car on which the camera crew are positioned, and not from a bicycle.
Astronauts can be seen cavorting around on the moon in their vacuum suits with no hoses attached to the front O2 in/out valves and only with what appears to be a vacuum cleaner hose attached to the back of their helmets.
The scene where Dr. Mallory is outside and totally free, preparing to immolate himself in protest, is followed by a scene inexplicably showing him inside, in plastic restraints, apparently under arrest with hi colleagues.