You know the music (Zip-A-Dee-Doo-Dah), but have you seen the movie Song of the South? Probably not. The movie has not been released to home video in the US out of fear of accusations of racism. It has been released to home video in European and Asian markets though. I bought a non-US DVD and watched it last night for the first time.
The mixture live action and animation is well done. It is hard to believe this was done in 1946. The music is great. Story was a little slow. I did not see any racism. I am glad I got to finally see it so I can have my own opinion about it.