Same thing happened with the 101 Dalmatians 20 years ago:

Animal shelters around the country have reported sharp increases in the number of unwanted Dalmatian dogs this year, many of them given to children as gifts last Christmas after the release of Disney’s remake of the movie ‘‘101 Dalmatians.’’ Although nationwide figures are not available, some shelters say they have seen the number of abandoned dogs more than double and that they fear the problem will only grow worse with the new ‘‘101 Dalmatians’’ television program on ABC

https://www.nytimes.com/1997/09/14/us/after-movies-unwanted-dalmatians.html