Continuity mistake: In the scene where Emme is flying through the store, you can clearly see a rope guiding the path of the glider.
Continuity mistake: When Emma and Jonathan are preparing for their motorcycle ride, her hair looks freshly done. They walk outside and the top of her hair looks flattened.
Continuity mistake: In several scenes, McCarthy's shoes change back-and-forth between multicolored bowling shoes and white tennis shoes. Scenes include a motorcycle/car chase.
Deliberate mistake: When Jonathan and Emma are beginning to know each other, they make their way to the wood shop, where Emma picks up an "air powered tool". The tool is a staple gun, but shoots two 3" nails close to Jonathan.
Deliberate mistake: In the scene where Emma and Jonathan are playing "Dress up", Jonathan is seen playing the organ. Then the shot pans to Emma dancing on the balcony. If you pay close attention at this point, you can see a heavy contrast in color.