An article on the (at the time) unreleased film from the June '87 issue of Cinefantastique-
Of note here is the description of Kevin's role in the film. Instead of just finding the key, he would have supposedly been He-Man's alter-ego somehow...
Beautiful Skeletor shot from Stout-
A couple of excellent behind the scenes images, and some excellent concept art for Man-At-Arms and Teela-
Lastly, a little, slightly uninformed history of the Filmation series-