Meryl Streep Gears Up for Awards Season in "The Iron Lady" Teaser
Meryl Streep in her Oscar-Winning Role as Margaret Thatcher in "The Iron Lady"

In honor of the upcoming 2014 Academy Awards, we've decided to take a journey into Oscar's past by looking through the winners of the coveted Best Actress award. From beloved stars of contemporary cinema (Meryl Streep, Sandra Bullock, Nicole Kidman) to the Hollywood starlets of yesteryear (Katharine Hepburn, Elizabeth Taylor, Audrey Hepburn), we've compiled a list of 21 films to have earned their leading ladies an Academy Award and that are currently streaming online on a number of platforms (Netflix, iTunes, Hulu and Amazon Prime). If you haven't seen these movies before, now's your chance to watch them: 

The Iron Lady (2011) - Meryl Streep

Black Swan (2010) - Natalie Portman

The Blind Side (2009) - Sandra Bullock

The Reader (2008) - Kate Winslet

Million Dollar Baby (2004) - Hilary Swank 

The Hours (2002) - Nicole Kidman

Monster's Ball (2001) - Halle Berry

Shakespeare in Love (1998) - Gwyneth Paltrow

Read More: Watch 18 Best Foreign Language Oscar Winners Online

The Piano (1993) - Holly Hunter

The Silence of the Lambs (1991) - Jodie Foster

The Accused (1988) - Jodie Foster

Terms of Endearment (1983) - Shirley MacLaine

One Flew Over the Cuckoo's Nest (1975) - Louise Fletcher

Guess Who's Coming to Dinner (1967) - Katharine Hepburn

Who's Afraid of Virginia Woolf? (1966) - Elizabeth Taylor

Roman Holiday (1953) - Audrey Hepburn

Gone with the Wind (1939) - Vivien Leigh