Did you catch this in Indiana Jones and the Last Crusade? On a boat navigating rough seas, Indy is reunited with a rival fortune hunter identified as "Panama Hat" in 1938. The antagonist passes by a stack of black barrels labelled "carboneto." The word actually means "carbide," a chemical product created from carbon and metal, when translated from Portuguese to English. But, given that it sounded like the fictitious substance that Han Solo is stored in, I wouldn't be shocked if Steven Spielberg and George Lucas slipped that in.