I knew I would find it someday.
I was probably about 10 when I saw it at the Knob Hill theatre.
It could show today since the Knob Hill district might as well be Tijuana.
I wouldn't have been certain it was my Puss N Boots movie if I hadn't unerringly clicked on the youtube timeline to the part I remembered.
PussNBoots tricking a Sorceror into changing himself into a mouse so he could eat him.
I don't remember him being a solid white cat. Thought he was more the Morris cat coloration like the modern incarnation.