The Turn Off Your Phone PSA is a short cartoon featuring Webby Vanderquack, Huey, Dewey and Louie Duck, Scrooge McDuck, and the Lobster Monster.
Plot[]
The DuckTales 2017 opening credits play until they are interrupted in the "Cave of Ali Baba" setpiece by a telephone ringing. After talking among themselves, the Ducks (and Lobster Monster) determine that it is coming from the audience, and Huey reminds everyone that "all phones must be on silent during a public movie screening or shellfish attack" according to the Junior Woodchucks Guidebook.
Behind the scenes[]
This shorts, used as promotion for DuckTales 2017, was shown in theaters in the Summer of 2018, appearing before the movies The Emoji Movie, Cars 3 and Despicable Me 3.
The ending of the short breaks the fourth wall, and thus it cannot quite be considered canonical. However, the Broadstrokes Principle may apply — during the Ducks' Cave of Ali Baba adventure, these must have roughly taken place, except that the ringing turned out to be from another source and no "audience member in the third row" was brought up. There have been suggestions that the ringing phone may actually be Scrooge McDuck (which would preserve a punchline, as he was the one who initially reacted with outrage to the ringing).
Albeit short and 4th-wall-breaking, this short is notable as Scrooge McDuck's first theatrical appearance since Treasure of the Lost Lamp in 1990.