Pamela McClintock / The Hollywood Reporter: Box Office: Taylor Swift's 'Showgirl' Rocks at No. 1 as Dwayne Johnson's 'Smashing Machine' Bombs - 'Showgirl' looks to clear at least $30 million, an impressive number for a pic that's neither a concert film nor a doc but rather a cinematic experience and (smart) promotional stunt for Swift's new album.