Continuity: The piles of toasted and untoasted bread in front of Isabel change sizes while she's talking to her father in the diner.
Continuity: After Jack has been hexed by Aunt Clara, and asked Isabel out on a date, he backs toward his trailer, still talking to her. We can see his bike directly behind him, and he will trip over it in a second. After a close-up of Isabel we cut back to Jack, and only the wheel of the up-ended bike is visible. Perhaps the gag was deleted.
Continuity: When Isabel is sitting after Jack tells her to call her with his shoe you can see her tea bag hanging out of her cup but when they switch back to her it is gone and then back again.
Continuity: When Jack is talking to his ex-wife, Sheila, on set, her shawl is alternately on/off her shoulder between shots.
Continuity: When Jack and Uncle Arthur are talking at the table making a smoothie, the lid wasn't there at the first take of this scene. However, afterwards the lid is firmly on the smoothie maker.
Crew or equipment visible: When Maria comes to the door with the Bewitched basket, someone is visible in the mirror as Samantha answers the door.
Continuity: As Uncle Arthur is driving Jack to the studio, they go through the same intersection and pass the same car twice.
Errors made by characters (possibly deliberate errors by the filmmakers): When Maria and Nina are counseling Isabel in her trailer, Maria is holding a plant. As she shifts it from one side of her lap to the other, she accidentally brushes it past Nina's face knocking her bangs into her eyes.
Continuity: When Aunt Clara drops into the fireplace, a big puff of soot flies all around, however in the next shot no soot shows up on the white fireplace or on the white carpet as Aunt Clara walks to a chair.
Continuity: After Jack ran out of his trailer to Isabel on the way back to the trailer you can see his bike behind him then the camera went to Isabel then back to Jack the bike is gone.