Gwyneth Paltrow and "Glee" co-creator Brad Falchuk attended Robert Downey Jr.'s 50th birthday party in Santa Monica, California, as a couple on Saturday, People magazine reports. Paltrow and Falchuk are going public with a romance that has been rumored since at least August. On Sunday, the two had dinner at a nearby restaurant, according to People. Oscar winner Paltrow, 42, and Falchuk, 44, had worked with each other professionally through her five appearances as Holly Holliday on his Fox high-school musical series, which aired its finale on March 20. In March 2014, Paltrow and Coldplay front man Chris Martin announced their separation after more than 10 years of marriage.