 In January 2006, Johnston and Horner were working on a new screenplay, with further work expected to begin following the completion of a fourth Indiana Jones film that Spielberg and Marshall were working on.In February 2006, Marshall said the film now had a good script, with filming expected to begin in 2007 for a 2008 release.In March 2006, Marshall said the film had a script and was getting a director; Johnston was a possible candidate.