(at around 29 mins) When Jim Dear and Darling leave Lady with Aunt Sarah, Darling first wear gloves when she went down stair, bare hand when she leave the door and wear gloves again when she wave the hand at the car.
(at around 45 mins) When Lady and Tramp were on the river boat you can see the boat is traveling a lot faster than the the paddle can propel the boat, the boat is obviously driven by a propeller and the paddle is only there as a prop.