At the beginning of the movie, Mrs. Riley's obstetrician tells her she is the mother of a 7-1/2-pound baby. The birth certificate Pat shows Kyle later in the film displays a birth weight of 8 pounds, 2 ounces.
While Kyle is watching Pat on "America's Weirdest People" his shirt has a blue collar. After the show ends, his shirt has a red collar.
After Pat gets fired for looking into people's mail, Pat walks into the store to get a few personal items. When Pat's talking to Tippy about getting the personal items, the eye dropper and the deodorant stick disappear and reappear between shots. Tippy puts the eye dropper and the deodorant stick inside the bag three times. The bag clearly contains three of everything except the napkins.
When Pat is falling down the stairs after making a joke at neighbors, the last cut makes Pat pass the same stairs twice. Observe the handrail mounts: Pat is seen falling past the second-lowest mount more than once.