Continuity mistake: In the park, when Pongo tries to get Roger to meet Anita he yanks Roger ahead, and Roger leaves his hat on the bench. In the next shot, when Roger and Anita are entwined in Pongo's leash, Roger is wearing his hat. (00:09:30)
Continuity mistake: After Pongo spots Anita and Perdita walking towards the park, Pongo moves the time forward on the clock and he leaves the dial's hinged bezel open as he rushes to the door and barks, but when Roger checks the time on the clock the bezel is closed. (00:06:20)
Continuity mistake: When Roger & Anita fall into the pond, Anita only has a book in her hands. When she stands up from the water, she has a purse instead. (00:09:30)