There is a binary of the original 1989 Animator (but compiled around 2010 from BSD-licensed source code I think) here if you want to try it:

https://github.com/AnimatorPro/Animator-Pro/tree/f5ed3/bin/d...

I am sure it is possible to find the Pro version somewhere, but I have not seen a build yet based on the published source code. Pro supported SVGA graphics and had a built-in scripting language, so should be more useful in practice, especially with access to the source code for modifying it (if/when someone figures out how to build it). There have been some attempts to port it to modern platforms, but not sure how that went.