When everyone rushes outside to investigate the car alarm, Becky is wearing her coat. All of the coats were earlier shown in the upstairs bedroom and she would not have had time to run upstairs and be outside the same time as everyone else.
When Ray shoves Paul in the dumpster and rolls it down the alley, it is on the left hand side with the lids opening out.
When the dumpster hits a pole and Paul climbs out, the lids are again opening out towards the middle of the alley.
Initially, the cops are recording the signal from Paul's wire remotely, but they later end up retrieving a tape from him.
After Paul's bathroom incident at the party, the pieces of the tree limbs disappear and reappear between shots.
When Ray is in Paul's apartment eating a sandwich, it varies inconsistently in size between shots.
When Becky is looking for her panties in Paul's apartment, you can see through her grass skirt she's still wearing underwear.
After returning from Ray's apartment, in one shot the mirror image of the car is used, with Paul driving from the right side seat.
There are no tollbooths on any roads or freeways in Seattle or the surrounding area.
Paul and Becky drive past a Save-On-Foods supermarket shortly after leaving Ray's apartment. There are no Save-on-Foods stores in Seattle, the company only has locations in the Canadian provinces of British Columbia and Alberta.
A Canadian flag can be seen in the distance during the tollbooth scene.
When Paul exits the church to look for Becky, in one shot, a street sign for "Burrard Street" can be seen on the traffic lights in the background. There is no Burrard Street in Seattle.