Finding Nemo (2003)
Although this isn't the first time something like this happened, Finding Nemo is different, because this time the whole premise of the movie was freeing the animal from being a pet. Then again, pet owners who took that premise to heart didn't respond much better. Some released their venomous fish into the ocean, ruining Florida's ecological balance. Others flushed fish down the toilet to free them and these fish died before even reaching the sewers.