VIDEO : Gwyneth Paltrow Stirs Romance Rumors At Robert Downey Jr.'s 50th Birthday Bash

Gwyneth Paltrow was spotted arriving at Iron Man co-star and pal Robert Downey Jr.'s huge 50th birthday party held at Barker Hangar at the Santa Monica Airport on Saturday evening, and although the blond beauty was stunning in a black cut-out jumpsuit, it was her arm candy that raised more eyebrows.
Walking in beside Paltrow with his arm around her waist was Glee co-creator Brad Falchuk, who has been at the center of romance speculation with the award-winning actress since the summer.