Chris had been leaning over Jaime as she'd been sitting in the front passenger's seat of her car, yet when Max jumps in through the driver's window, Chris is nowhere to be seen.
Jaime knocks out just small portions of the wall at a time, yet huge cascades of rocks are shown falling on the other side.
The crystal in the pedestal cauldron is shown as a spiky irregular shape, then later as a compact roundish rough-surfaced snowball-looking orb, and then as a spiky shape again.
Oscar holds his hand at upper-chest-level to indicate Jaime's height as being well over a foot shorter than his own lofty height of 6'3", yet in reality, the long-boned Lindsay Wagner was a good "healthy" height of 5'9", only about six inches shorter than the somewhat-towering Richard Anderson.
Jaime turns the safe's dial in the same direction twice. Most safes only open with three or more twists of the dial turned in opposite directions.
During the countdown, at least two workmen can clearly be seen calmly traversing the access-platforms on the launch-pad tower; obviously just a stock-footage shot of an occupied launch-pad, filmed long prior to countdown. Nobody would be allowed on the platforms or anywhere else that close to the rocket during liftoff; they would be incinerated by the rocket blast.
As the elderly alien is speaking to Jaime and Chris, one of the decorations on the wall behind him falls off.
The hole that Jaime climbs through after punching out the cement wall is too smoothly-rounded to be just a random smashed-open hole; obviously a previously-formed "doorway" in the wall.
The guard starts to fall and gives a distressed yelp before the barbell even touches him.
When Jamie knocks a hole in the wall and Chris enters the pyramid which has been sealed for 5 thousand years the torches are still burning on the walls.
When Jaime first knocks a hole in the wall, the shadow of someone moving on the other side of the wall can be clearly seen, through the hole.
The NASA technician says that the spaceship is passing Jupiter, yet the solar system "map" clearly shows the ship passing the outermost planet, Pluto. And just a moment earlier, the alien ship was shown in proximity to Mars.