Corrected entry: When all the soldiers are pointing their guns at the group of Tolan at Maybourne's order, right before Tolan go through the gate, we see a guy standing down his weapon, holding it towards the ceiling. why is he doing this, especially when Maybourne is about to give the order to fire?
Correction: This could be showing how one soldier felt. This could have been purposely done.
Corrected entry: When Jack first tells Daniel to dial home, he brushes off the edge of the DHD which is covered with about 2 inches of ash, but when we see the DHD in the background just seconds later, it has only a light dusting of ash on it.
Correction: The DHD only has a light dusting of ash because Daniel had to brush the ash off to dial home which is why there is less ash on it.
Corrected entry: The leader of the Tolans who is disgusted by the humans' technological inferiority is wearing a regular earth zipper on his costume.
Correction: Why is this a mistake? A zipper is a simple and effective method of fastening clothes. We have been using it for close to 100 years (1913). Once something so simple is in use, why waste time and money on finding something more fancy? And with all the cultures SG-1 finds, surely some things like buttons, zippers, bows and arrows, candles, etc are going to be the same from culture to culture. There are only so many ways to handle mundane tasks no matter how high your tech level is.
Correction: The wormhole does close behind Lya after she comes through. She then reopens the gate (without the typical "kawoosh") and leads the Tollan through.