Mine is a sad one 😞
In the movie All Dogs Go to Heaven, the character of Anne Marie was voiced by Judith Barsi (also the voice of Ducky in The Land before Time). Judith's father was a horribly abusive alcoholic. After Judith had finished recording her lines for the movie, the father murdered both her and her mother before killing himself.
I remember hearing this story years ago, and it's recently stated trending on Tiktok with people claiming that Burt Reynolds recorded the final scene after he learned she had passed. I can't find a reputable source for that, but it does make the final scene all the more sad to watch. Here's the video I watched. Be warned, you'll need a tissue!
vm.tiktok.com/ZGe3cBJ7x/