In which animated Disney film would one find the characters Si & Am?

We are Siamese, if you please... That's all I remember...

We are Siamese, if you please. We are Siamese if you don't please. We are former residents of Siam. There is no finer cat than I am!

I remember going to the theater to see this movie. The line of kids to see this flick was around the block.

Pictures a give away