Muppets From Space (1999)

Continuity mistake: In the scene with the Captain Alphabet messages, we see the words "watch the sky" being formed in a clear space on the tablecloth, but when Rizzo comes to look, the tablecloth is suddenly littered with cereal, many of the letters not even used in "watch the sky". When the words "are you there" appear, the tablecloth is once again clear.

Ed Singer: Don't laugh AT meeeee.

Trivia: This movie is based on a scene from the original Muppet Movie, where, while sitting around a campfire, Gonzo sings "I'm Going Back There Someday," and looks up at the night sky (though nowhere in any other Muppet show or movie does it say he's an alien).

Xofer