By the time I stated at Disney in August of 1980, Frank and Ollie had already finished work on their last film The Fox and the Hound. The rest of the studio was still wrapping up sequences, correcting rough animated scenes and trying to meet deadlines for clean up animation.
But Frank and Ollie were still around at the studio, upstairs in the animation building, working enthusiastically on their first book The Illusion of Life.
For the film Frank had animated the section in which Tod and Copper meet in the woods for the first time as cubs. Ollie had focused on the sequence with grown up Tod getting to know Vixey.
Both animators worked together as they always had, talking over the acting for particular scenes and exchanging drawings. (They also layed out continuity sequences for young artists to animate).
Overall they thought that the type of personalities and situation in the film didn’t challenge them like previous animal assignments. It seemed to them they had done similar work on earlier movies with fresher results. Frank and Ollie were ready to let young people take the medium and develop it into new directions.
But as you can see in these final drawings, they both still had that sincere, emotional touch with character.
These are Frank's drawings: