Article continues below advertisementGwyneth Paltrow's headline-grabbing Oscars appearance has been branded a "shameless stunt for Goop dress sales" by critics, as the actress faces an intense backlash over her revealing red carpet look, OK! can reveal.The 53-year-old Oscar winner, who collected the Best Actress Academy Award in 1999, returned to the event this year for the first time in more than a decade at the Dolby Theatre in Los Angeles, wearing a striking Armani Privé gown.