Continuity mistake: The Russian spaceship approaches the stranded 'Ironman 1' capsule, and as it moves across and fills the screen, it blocks the bright sun directly behind it. The following shot shows it moving away from that position and the sun is now nowhere to be seen.
Continuity mistake: Rescue astronaut Dougherty wears a red helmet with a large, single white stripe running down the middle from back-to-front. Once inside his space vehicle the stripe disappears, but shows up once again once he exits the ship in space.