Mestres do Universo

Frank Langella went on record in an interview stating that playing Skeletor was one of his favorite roles. His young son was a huge fan and was running around the house shouting "By the power of Grayskull," so he took the role for him. He wrote some of his own lines, like: "Tell me about the loneliness of good, He-Man. Is it equal to the loneliness of evil?"

When Karg leads Skeletor's troops charge into Gwildor's home, he tells his men to "find the key". It is impossible for him to have known about a second cosmic key as his superiors did not even know until shortly later on.

There is a scene after the closing credits have ended: Skeletor pops up from the waters of the pit he was thrown in, and says "I'll be back!"

Some syndicated prints of the film omit the post-credits scene.

Edited into As Aventuras de Huck Finn (1993)