Lost In Space - 3 Slip-Ups from 'The Anti-Matter Man'
1) As Will and the robot follow the tree lined path, you can see the shadow of a moving camera.
2) As anti-matter rock formations move along the ground, you can see the shadow of a technician pushing it.
3) Look closely at the end of the climatic battle when John pushes his anti-matter version into oblivion. Displaced dust resulting from an impressive stunt fall can be seen.
video, good eyes
on 05-19-2001 and