Paramount has moved the release date for Marvel Studios’ Thor feature from May 20th to May 6th, 2011, taking the date vacated one day earlier by Spider-Man 4 (see “Spider-Man 4 Delayed”).  This move saves the date for Marvel, which has had four previous first-weekend-in-May releases.    

Disney quickly announced that it would use the May 20th date for Pirates of the Caribbean:  On Stranger Tides. 

Spider-Man 4 won't be scheduled until a script has been approved.