1. Walt Disney's first animation company, Laugh-O-Gram Studios, went bankrupt in 1923. When the studio closed, Disney took the reel for what would eventually become "Alice in Wonderland," the adventure film, in 1951.
2. Mickey Mouse actually started off as a rabbit. Walt Disney and Ub Iwerks created Oswald the Lucky Rabbit, but after a disagreement over rights with Universal Studios, the film distributor, Disney refused a pay cut and created Mickey Mouse. In 2006, The Walt Disney Co. got the rights to the character back.
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3. In 1978, on his 50th anniversary, Mickey Mouse became the first cartoon to receive a star on the Hollywood Walk of Fame for his role in animated films. Since then, 14 other fictional cartoon characters, including four Disney characters, have been honored with a star there.
4. "The Band Concert," released in 1935, was Mickey's first appearance in color. For this short film, he was given a new look. By 1940, his look would evolve into what we know him to be this day.
5. One of the earliest Mickey goods to go on sale was the Mickey Mouse wristwatch. Introduced in 1933, the watch originally retailed at $3.75 and sold at a pace of 2 million annually. The now-vintage watches can be found on eBay with prices ranging from 10 to 300 times their original value. Today, Mickey Mouse merchandise sales reportedly makes up 40 percent of the company's consumer products revenue, according to Time.