Pictures: Ryan Gosling's mom in girlfriend's dress at his latest film premiere.

"My mother is wearing all my girlfriend's clothes" laughedRyan Gosling to reporters when he showed up at his new film "GangsterSquad" with his mother who was wearing his girlfriend -Eva Mendes- dress.

Mendes missed the premiere which was in Los Angeles but she lenther tight black dress metallic coat to his mother, Donna, who was there tocelebrate with her son.

The premiere was also attended by film stars Emma Stone, who wasstunning in a strapless mini dress, next to Sean Penn, Josh Brolin, Nick Nolte,Anthony Mackie, Michael Pena and Giovanni Ribisi.

"Gangster Squad"is an action/crime/drama that takes place between 1940 and 1950 and is about the effortsmade by the Los Angeles Police force to keep East Coast Mafia out of LA.