Visiting IMDB and checking the page of Indy IV, I discovered alternate titles that were considered for the film, located on the trivia link. Here they are: Before ?The Kingdom of the Crystal Skull? was chosen as the title, several other titles were considered and even registered with the MPAA in August 2007, including: Indiana Jones and... ?The City of Gods?, ?The Destroyer of Worlds?, ?The Fourth Corner of the Earth?, ?The Lost City of Gold?, ?The Quest for the Covenant?. I find the last one most interesting. Comments?