Warner Bros. Pictures is releasing Superman Returns two days earlier from Friday, June 30, to Wednesday, June 28.
According to Variety, the change in dates is designed to maximize grosses over the July Fourth holiday, which falls on a Tuesday, as if giving the studio a seven-day weekend.
Warner Bros. had previously wanted to release the film on June 28, but was not sure if the film would be completed in time. In addition, there were issues involved with the IMAX release of the film.
The 4th of July weekend has fared well for the studios in recent years. Last summer, when the holiday fell on a Monday, Paramount and DreamWorks' War of the Worlds took in $112 million in six-days. In 2004, Sony's Spider-Man 2 racked up $180 million during the same six days.