Continuity

When the painter was drawing the Chinese woman using soy sauce, he dripped a few drops on her face, but in the next scene, in his studio, the soy sauce drips are gone.

Character error

Natalie Portman's character, while discussing the rules of kosher, states she cannot eat "nothing that's not blessed by a rabbi." This is a common error - the production of kosher food is overseen by a rabbi, but the final products are not blessed.