Angelina Jolie is known for her sophisticated simplicity, whether she's wearing a sleek trench coat or running errands in stilettos. Today, at the 81st Venice International Film Festival, Jolie donned her signature elegant, no-frills look, but there was a meaningful story behind the ensemble.

The actor wore a simple black high-necked column dress from her fashion label, Atelier Jolie. Giving new meaning to the simple dress, Jolie wore a gold Cartier panther brooch.

But this decorative pin was more than just jewelry. Jolie plays Maria Callas in Pablo Larraín's new biopic, Maria. You can imagine how special it is to wear her jewelry,” Jolie told Vogue.

Callas had a large collection of jewelry, including the iconic panther created by the French fine jewelry house in 1971. This brooch features Cartier's signature gold panther (emerald eye) atop a white oval chalcedony. [...] [...] [...] [...] [...] [...] [...] [...] [...]