Army Ants

In the 1980s, Disney considered making a film about ants protecting their colony in military style.

Plot
(Mentioned above)

Why It Was Cancelled

 * 1) The idea never fully materialized.

Result

 * 1) The idea of a film about anthropomorphic ants would eventually be used in Antz and A Bug's Life, both films coming out years after this idea was thought of.