Pilot (aka Emotions in Motion) - S1-E1
Deliberate mistake: Throughout the first episode, Jen's bangs are long in scenes relating to her "Grams" and short in all other scenes. This is because the scenes involving her storyline with Grams was shot much later, after the show was picked up. (00:05:45 - 00:16:15)
Pilot (aka Emotions in Motion) - S1-E1
Continuity mistake: In the pilot, Pacey says he has 3 sisters. In the rest of the series he only has 1 sister and a brother. (00:25:36)
Pilot (aka Emotions in Motion) - S1-E1
Visible crew/equipment: In the scene outside of the Rialto, where Dawson is scolding Joey for being rude to Jen, Joey's shirt is falling off one shoulder. She shrugs to fix it, and her shirt lifts in the back, exposing her mic. (00:31:50)
Pilot (aka Emotions in Motion) - S1-E1
Visible crew/equipment: It's morning at Jen's and Grams'. Jen is seated at the kitchen table downstage/far left. Grams is upstage/right at the stove scrambling eggs. Grams crosses downstage to put the eggs in front of Jen and the mic overhead upstage/right peeks out just a tiny bit. Grams crosses back to the stove. Suddenly the microphone - including the rod the mic is on - just drops down almost completely into the frame over Grams' head and is not pulled back up.
Pilot (aka Emotions in Motion) - S1-E1
Continuity mistake: In season one. Dawson's door is across from bed, his closet is on the right side in the corner. But then later on in the show his bedroom door relocates to be beside his closet.
Kiss (aka A Prelude to a Kiss) - S1-E3
Visible crew/equipment: When Joey, Bessie, and Bodie are at the seaside restaurant talking about how large Bessie looks (during her pregnancy), you can see a boom microphone dipping in and out of the picture above Bessie's head. (00:07:40)
Kiss (aka A Prelude to a Kiss) - S1-E3
Continuity mistake: After Joey finds the visitor Anderson playing a violin on his yacht, they have a back and forth conversation where she hides her work apron behind her back. When the camera angle switches back and forth, her arms are in different positions. (00:14:10)
Kiss (aka A Prelude to a Kiss) - S1-E3
Other mistake: After Dawson and Jen order "cokes" from Joey at the seaside restaurant, Joey pours their drinks into plastic red cups. She only pours several milliliters of cola into the cups, barely enough for one gulp. (00:29:50)
Suggested correction: Joey is upset that Jen and Dawson are going out in the first place. It's not surprising that in her frustration, she wasn't paying attention to what she was doing, or else purposefully short-changed them on coke out of spite.
Baby (aka Look Who's Talking) - S1-E6
Visible crew/equipment: When Pacey is telling Tamara they should go out together there is grass on the camera lens, in the bottom center, in each shot of Pacey. (00:05:05)
The Scare (aka Friday the 13th) - S1-E11
Continuity mistake: When Pacey drives Joey and Dawson to the market to get party supplies, they leave in broad daylight. It can't be more than a few minutes down the road, being such a small town. Yet as they drive there, the sun is suddenly going down, and when they arrive at the store it's dark and night time. It couldn't have gone from broad daylight to dark night time in that short period of time. It appears to be a very long drive, but it's just the local market.
The Scare (aka Friday the 13th) - S1-E11
Plot hole: When Pacey drives them all to the market, he explains that he had to 'steal' the car from his family, and thus doesn't have the keys. He makes Joey stay in the car while they are shopping, because he can't turn off the car. But later, at the end of the episode, Pacey suddenly goes running out of Dawson's house late at night, jumps into the same car and turns keys in the ignition to start it and drive off in a hurry. How would he suddenly have the keys to the car? He drove them all straight to Dawson's house from the market, with the crazy girl - and the car had been there ever since. He had no time to go back home to get the keys; and it isn't likely his father, the town sheriff, would allow his underage son without a legal driver's license, to have the keys.