Article continues below advertisementOlivia Wilde sparked concern among fans after her "unrecognizable" appearance at a movie premiere, with critics saying she appeared noticeably thinner. Wilde, 42, attended the premiere of The Invite, which she stars in and directs, opening the San Francisco International Film Festival on April 24. Article continues below advertisementSource: SFGATE/TikTokOlivia Wilde appeared in a video at the San Francisco premiere of the film 'The Invite.