I Was an Adventuress is a 1940 American drama film directed by Gregory Ratoff, starring Vera Zorina, Richard Greene, Erich von Stroheim, and Peter Lorre.

[2] Countess Tanya Vronsky acts as bait for notorious jewel thief Andre Desormeaux and his assistant, Polo, on their tour through Europe.

They meet again months later in Paris, and Desormeaux makes another attempt at persuading the countess to work with them again.

Tanya entertains her guests at the Vernay mansion by performing a dance from the ballet Swan Lake.

For the scene, a $15,000 (equivalent to $300,000 in 2023) all-glass set, the first of its kind, was built using 40,000 square feet (3,700 m2) of 1⁄4-inch (6 mm) plate glass.