Continuity: When Andy and Trish argue in the bedroom, the bed is covered in action figure boxes. Between shots just as Andy leaves, a 'Dracula' action figure box disappears.

Visible crew/equipment: In the final sex scene, a crew member's foot is momentarily seen on the upper right side of the screen.

Continuity: When the drunk girl that Andy picks up at the bar throws up on him in the car, only a little hits his face. When they cut to a close-up, his head and face are drenched in pink vomit.

Continuity: When Andy and Trish are in bed for the first time, Trish removes her black top and throws it to the floor. In the next shot it reappears back on the bedcovers, then back on the floor again.

Continuity: When Andy and his friends are on the loading dock smashing the bulbs, there is a white mark from a smashed bulb on the dock next to Cal. But in the next shot the mark has vanished, and Cal smashes another bulb in the exact same place, producing the white mark again.

Deliberate "mistake": When Jay and Mooj are arguing over the commission from the sale that Mooj just made from the girl, between scenes Mooj's hair goes from parts of it standing up on his head to laying perfectly combed flat.

Continuity: The red plastic action figure that Trisha picks up and then places on the shelf changes position a few times as she talks with Andy, before she runs off.

Continuity: During a conversation between Andy and Cal, the cord for Cal's name badge changes position. A few minutes later during a conversation between Andy and David, the cord for David's name badge shifts back and forth between two positions.

Continuity: When they are playing poker Andy collects the chips then, Mooj calls him a ringer and leaves, the chips are still in the pot, in the next shot they are gone.

Continuity: When Andy and David interrupt Haziz's smoke break, Haziz opens the back door to the store, enters, and the door begins to close behind him. In the following shot, the door is still closing, but is open a little wider than a moment before.

Factual error: When Cal and Dave are playing videogames and coming up with different ways to tell whether or not they're each gay, Cal is using a Nintendo 64 controller. The version of Mortal Combat that they're playing could only be for Playstation 2, Nintendo Gamecube, or Xbox.

Continuity: In the scene where Andy is making waffles, he opens the waffle iron to take them out. In the next shot, the lid on the waffle iron is closed.

Continuity: In the scene where Seth Rogan says, "Is that the Six Million Dollar Man's boss?" and points to the Oscar Goldman doll, the doll in blue to the right of it doesn't have a hat on. In the scenes immediately before and after, it does.

Continuity: Right as the drunk girl is about to puke on Andy, you see her facing forward, with her mouth opened, gagging. Then, in the next shot her mouth is suddenly closed and her head has started turning towards Andy.

Continuity: When Andy goes into Trish's eBay shop, and talks with her, the lamp which shines on Trish changes position between shots.

Continuity: On the 20th date, Trish and Andy are sitting on a chair discussing the date and that they are going to have sex. When Andy speaks, her right hand is on his top button. When Trish speaks, its back in her lap. This happens three or four times, all in the same conversation.

Continuity: There is a shot of Trish's hand on Andy's shoulder and her other one in her lap when they are talking about selling his action figures on eBay. The camera switches to an over-the-shoulder shot of her and both hands are in her lap. The view switches instantly, so there's no time for her to move her hand.

Continuity: In the scene where Andy hits the pot hole and flips over his handle bars when the cut to the shot after he flips and is laying on the ground the back is gone when it should have landed at his legs from the way the went down.

Continuity: During the scene where Beth is in the bathtub, all of Andy's shots have Beth's foot in the lower right hand corner, even though she only has her leg up for portions of the scene. Eg: when Beth puts her "friend" in the water, both her legs are under; we cut to Andy and the foot is in the shot, and then we cut to Beth and both her legs are still under.

Continuity: During the "Aquarius" montage at the end of the film, Andy's "man-o-lantern" chest-wax job is visible in one cut (with the hair just starting to grow back), then completely gone in the next. Since the bedroom scenes in the song are meant to be from the same night, there's no way that his chest could fill in so evenly so quickly.