Anyone know why Roger Ebert believes it should not be released? As a film critic, I would think that he was be most interested in getting the film out there to be seen and evaluated on its own merit as a piece of art, dated or not.
If his reservation about releasing it is because it might offend certain people or come across as misrepresenting their cause, then this seems contrary to his stance on many other otherwise "controversial" films, not the least of which would be "Fahrenheit 9/11," which he championed as a great film, despite reservations by conservatives that is misrepresented them or the President.
I definitely think that "Song of the South" should be released, including any context that film historians or teachers may want to add. If it does engender discussions about race relations, isn't that a good thing? Those who ignore the past risk repeating it AND its problems....
Paul