Continuity: When the cab driver pulls up to ask Grandpa Vanderhof how is foot is, he goes from having one arm hanging out of the window to both arms between shots.
Continuity: When Mr. Kirby wrestles Kolenkhov to the floor at the end of the movie, his glasses fall to the floor. In the next shot, as he sitting back in his chair, he is wearing his glasses again.
Continuity: The position of Mr. Vanderhof's arm on his crutch changes between shots when he apologizes to Mr. Kirby after Kolenkhov wrestles Kirby to the floor.
Continuity: During the jail cell scene, the real estate guy comes to bail out Grandpa, and in one angle his hands are separated by two bars and in the other angle his hands are separated by only one bar.
Continuity: During the first meeting between the Kirbys and the Vanderhofs, Mr. Kirby's cigar changes abruptly from his left hand to his right.
Continuity: During the jail scene, Mr. Vanderhof changes his position in relation to his crutches abruptly, first holding them, then leaning on them, and then holding them again.