How much money did the film Terminator Salvation gross worldwide ?
The film 's first nationwide U.S. screenings were at 12 A.M. on Thursday , May 21 , 2009 , making $ 3 million from midnight screenings and earning $ 13.3 million in its first day and grossed an additional $ 42,558,390 on its 4 - day Memorial Day opening weekend from 3,530 theaters .