Daisy Duck car breaks down. According to The Encyclopedia of Animated Disney Shorts and the Big Cartoon DataBase, "Don Donald" is considered Daisy's debut. In addition to this, "Don Donald" is included on the Disney-produced DVD "Best Pals: Donald and Daisy." Donna's identification as an early Daisy is aided by the fact that other Disney characters, such as Goofy, were also introduced under different names (Dippy Dawg), appearances, and mannerisms. "Donna" in Italian is also the equivalent of "Don," a title Donald takes in the film's title. In 1999, Walt Disney Company released a collector's pin as part of their "Countdown to
Cartoon physics a cliff, gravity has no effect until the character notices. In words attributed to Art Babbitt, an animator with the Walt Disney Studios: "Animation follows the laws of physics—unless it is funnier otherwise." Specific reference to "cartoon physics" extends back at least to June 1980, when an article "O'Donnell's Laws of Cartoon Motion" appeared in "Esquire". A version printed in V.18 No. 7 p. 12, 1994 by the Institute of Electrical and Electronics Engineers in its journal helped spread the word among the technical crowd, which has expanded and refined the idea. These laws are outlined on dozens of websites.