When Colonel Jack O'Neill was defending Lt. Tyler he ran out of ammo. You can hear the clicking of the gun. Then Major Samantha Carter hands him two magazines for his P90. The bullets in the clip already attached to his P90 can clearly be seen.
When Jack is joking with Tyler about having to fill out paperwork while on an alien planet, a helicopter can be heard in the background.
When the team is rescuing Lt. Tyler, several of the Jaffa react to being shot despite there being no sparks or other signs they have been hit.
Wardrobe goofed with Hammond's badges through the first part of the episode. His Command Pilot's wings and Master Information Management badge are reversed with the MIM badge above the wings. Note that sometime after 2004 Hammond's MIM was changed to the Master Space Operations badge. The SO badge was not authorized until 2004.
Hammond says that the phone on his desk only receives calls from one man. In previous episodes, he has received many other calls including one from his granddaughter.