Spongebob Squarepants: The Movie Easter Egg - Another Cartoon Under the Sea?!

Somewhere in the beginning when Spongebob is at the Goofy Goober crying about not getting a promotion, Patrick comes. when Spongebob tells partick that he didn't get a promotion Patrick yells "What!" behind one of them (i'm sure Patrick) there is picture frames with portraits of Popeye the sailor man and other old cartoons on the wall, mabye the creator liked those old cartoons when he was little.