Rachel McAdams in Dior

Rachel McAdams in Dior. Photo by Getty Images.

Who: Rachel McAdams

When: Thursday, July 9th

Where: The premiere of "Southpaw" in Toronto, Canada.

What: The True Detective actress wore a satin Dior dress paired with silver Gianvito Rossi sandals and Cartier earrings.

Why: Because not just anyone can get away with a red dress on the red carpet.