Revealing mistake: "Stop When Red Lights Flash": In the cell with Kate, Weston puts on his mask, making only his head visible. But the blue-screen matte used for this special effect is, weirdly, showing through his blue eyes. (00:23:40)
Revealing mistake: Whenever Isis has to do jumps you can tell it's not her but a stunt double.
Revealing mistake: As the camera looks at the exhaust port of the probe's engine, there's water dripping off the bottom, showing the stream is water vapor.