The title character of this Mexican political fantasy (2001) is a pop balladeer turned president (Jorge Zarate) who’s supposedly assassinated during a reelection campaign. The film zigzags through time, focusing on various characters who may have plotted to kill him or who tried to expose the conspiracy, but along the way Rex is also revealed as a corrupt, capricious egomaniac—sort of a cross between Elvis Presley and Charles Foster Kane. In fact, Alberto Anaya’s deep-focus, sepia-toned cinematography and Antonio Pla’s lavishly expressionistic set design deliberately recall the Welles film. Director Fabian Hoffman can’t quite straighten out the jumbled narrative, an allegory about the fascist tendencies of Mexico’s ruling elite, but this is still a feast for the eye. In Spanish with subtitles. 86 min.