One reason Aniston may have looked so comfortable in the amazing gown? She pulled it from her own closet. “This is a vintage John Galliano for Christian Dior, that is mine,” Aniston told Access Hollywood . “I have a little collection of you know, the oldies but goodies.” The dress is likely from one of Galliano’s ‘90s collections for Dior, which was a celebration of 1930s film star Jean Harlow. Very on trend, considering that the ‘90s are back in a big way — and who better to rewear a trend than Jen?