Overview
The Picnic is a 1930 American animated short film directed by Burt Gillett and produced by Walt Disney. It was first released on October 9, 1930, as part of the Mickey Mouse film series. It was the twenty-third Mickey Mouse short to be produced, the eighth of that year.
The cartoon is notable as the first appearance of a pet dog called "Rover", an early version of a character that was renamed Pluto six months later, in the April 1931 cartoon The Moose Hunt.
Plot
Mickey arrives at Minnie's house to take her out for a picnic. Minnie asks if she can bring her "little Rover", although Rover turns out to be a huge bloodhound the size of Mickey. The mice tie Rover to the back of the car and drive to the picnic spot, but along the way, Rover spies a pair of rabbits and gives chase, dragging the car behind him. Rover chases one rabbit through a series of rabbit holes, but the rabbit pulls the final hole away, and the dog bangs his head on the ground, dazing Rover.
Mickey and Minnie set up for the picnic, and Mickey cranks up the portable gramophone. The mice dance to "In the Good Old Summertime", but the birds and squirrels are active too, swiping the picnic food while Mickey and Minnie are dancing. Rover follows his nose until he finds Mickey, just as a stormcloud bursts and begins to pour. Mickey gathers up the food and the gramophone—both overrun with animals and bugs—and the three friends jump into the car. Rover's tail acts as a windshield wiper as Mickey and Minnie drive home through the rain.
From Wikipedia (CC BY-SA 4.0).