For a time, "Saint Laurent" is a welcome invitation to a 40-year-old party, interspersed with scenes that give insight into the specifics of a jet-setting fashion designer's life. [...] at a certain point, the life was indistinguishable from that of any other addict. [...] show them a movie such as "Saint Laurent" - show them how incredibly boring they could become, how drugs are a cookie cutter enforcing the most pathetic conformity - and it might give them pause. [...] Saint Laurent's designs and working life take a back seat to scenes of him stuffing his face with pills, accidentally poisoning his dog and sleepwalking through sex with a variety of lovers.