Natalie Portman's best performance: 'Black Swan' or 'Jackie'? | The Tylt

Check out the synopsis of "Black Swan," per IMDB.

A committed dancer wins the lead role in a production of Tchaikovsky's "Swan Lake" only to find herself struggling to maintain her sanity.

Watch a clip from the movie below, and you'll get exactly why Natalie won her Oscar for this performance.

Here's the synopsis of "Jackie," also thanks to IMDB. 

Following the assassination of President John F. Kennedy, First Lady Jacqueline Kennedy fights through grief and trauma to regain her faith, console her children, and define her husband's historic legacy.

Watch the movie's trailer below, and see how Natalie embodied the former first lady.