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Tilda Swinton in Michael Clayton (2007) — 18 minutes
Award for Best Supporting Actress in Michael Clayton goes to Tilda Swinton and her stellar 18 minutes of screen time!
Lee Grant in Shampoo (1975) — 18 minutes
Yet another Oscar for Best Supporting Actress on the list. Lee Grant was seen on the screen for mere 18 minutes, but that was clearly more than enough.
