​Oscars 2015: Take our Best Supporting Actress poll

Which of this year's candidates for the Best Supporting Actress Academy Award do you think should take home the Oscar?

Watch clips from their nominated performances by clicking on the embedded video players; then, be sure to vote in our poll below on who you think should win!

For more info:

Patricia Arquette, "Boyhood"

In its portrayal of a struggling single mom, played by Patricia Arquette, "Boyhood" is as much about her growth as it is about the kids'.

Arquette bonded with her young co-stars through her director's collaborative way of working: "He introduced me to the kids. He moved out of his house. I had the kids alone all weekend. I tucked them in bed. I read them stories, made them breakfast," she told "Sunday Morning."

In the clip above, Mom (Arquette) tries to sooth the fears of her son (Ella Coltrane) about her separation from his father.

The movie was shot in spurts over a span of 12 years. "It was such a long commitment -- at some point, did you go, 'Oh, my God, if this thing craters, I will have spent nine, 10 years of my life on this'?" asked CBS News' Mo Rocca.

"I think it was, like, six or seven years [in], we were like, 'Yeah, this would really suck if this just falls apart!'" she laughed.

This is Arquette's first Academy Award nomination. She has already won Best Supporting Actress Awards from the Golden Globes, Screen Actors Guild, BAFTA, and New York Film Critics Circle (and Best Actress from the L.A. Film Critics Association for the same performance).

Laura Dern, "Wild"

Laura Dern, who was nominated for Best Actress in 1991 for playing a somewhat dissolute young woman in "Rambling Rose," stars as the mother of a young woman who ventures alone into the wilderness in "Wild."

In flashbacks Dern appears as Bobbi, a woman battling cancer, whose death jars Cheryl Strayed (Reese Witherspoon) into taking an 1,100-mile solo hike.

In the clip above, Dern imparts some wisdom about happiness.

Dern also acted opposite Strayed's real-life daughter, named Bobbi, who at nine plays her own mother.

"Cheryl was so heartbroken that her mother would never meet her children and when she saw Bobbi run into my arms on the first day, she watched her daughter meet her grandmother for the first time," Dern told the Los Angeles Times.

Keira Knightley, "The Imitation Game"

In "The Imitation Game," about British mathematician Alan Turing's effort to crack the Nazis' Enigma Code during World War II, Keira Knightley plays Joan Clarke, a fellow mathematician and cryptanalyst recruited by Turing (Benedict Cumberbatch) for the covert operation.

For Clark, breaking military code proved easier than breaking the era's presumptions about a woman's role. In order to join Turing at England's top secret military intelligence operation at Bletchley Park, she had to pretend she was a secretary.

In the clip above, Clark works to solve a test that would win her a position on Turing's code-breaking team.

"I think that, as much as she was trying to break that glass ceiling, she realized that by being a bull in a china shop, it wasn't gonna get her what she wanted," Knightley told "CBS This Morning." "But by being somebody who people liked to be with, she managed to slowly get to the places that she wanted to be."

Knightley was previously nominated for an Oscar for Best Actress, for "Pride and Prejudice" (2005).

Emma Stone, "Birdman"

Emma Stone, who starred in "The Help," "Magic in the Moonlight" and the recent "Spider-Man" films, plays Sam, the daughter of a Hollywood actor famed for superhero films who is trying to reboot his own career by staging a Broadway play.

Just out of rehab, Sam is at loggerheads with her dad, whom she believes is blind to what the public really wants, putting himself and his family through a disastrous vanity production.

In the clip above, Stone rails to her father about his relevance (Language NSFW).

The film was shot on location at New York's St. James' Theatre, with the performances and camerawork staged to make the movie appear as one long, unbroken take.

"It was great because it was sort of a contained environment -- mirroring what these people would feel, going through these really cramped hallways," Stone told CBS News.

Meryl Streep, "Into the Woods"

In Rob Marshall's film version of the Stephen Sondheim musical, about fairy tale characters and happily-ever-afters that aren't so happy after all, Meryl Streep stars as the Witch whose plotting steers the other characters into striving to obtain their deepest wishes.

In the clip above, Streep sings "Stay With Me," to the Witch's daughter.

It is Streep's 19th Academy Award nomination - a record for actors. She won a Best Supporting Actress Oscar ("Kramer vs. Kramer"), and two Best Actress Oscars (for "Sophie's Choice" and "The Iron Lady").

Take our poll!

Oscars 2015: Best Supporting Actress

Which nominee do you think should win the Academy Award?

Also, be sure to vote in our other polls:

Best Original Song poll

Best Visual Effects poll

Best Director poll

Best Supporting Actor poll

Best Actress poll

Best Actor poll

Best Picture poll