He just won an Oscar ... and then he was filing a missing-persons report on it. Award-winning filmmaker Pasha Talankin -- who thought his golden statuette, which he won earlier this year for Best Documentary Feature -- vanished for good Wednesday after a TSA showdown at John F. Kennedy International Airport in NYC -- is finally breathing easier … because the missing award has been found. Talankin was forced to check his Oscar after agents flagged the 8.5-pound trophy as a potential weapon