What to expect at the 2015 SAG Awards

SAG Awards

It will be an extra starry night in Los Angeles Sunday at the 2015 Screen Actors Guild Awards.

A slew of celebrities will be in attendance at the 21st annual event where "Birdman" is in the lead with four nominations, including one for best ensemble cast -- the ceremony's top prize. "Boyhood," "The Imitation Game" and "The Theory of Everything" are not far behind with three nods each.

"Birdman," which also sees Michael Keaton and supporting actors Edward Norton and Emma Stone up for nods, will compete in the ensemble category against "Boyhood," "The Grand Budapest Hotel," "The Imitation Game" and "The Theory of Everything."

Expect a lot of celebrities as presenters, including Norton, Stone, Colin Farrell, Jeff Goldblum, Allen Leech, Jared Leto, Lupita Nyong'o, Emmy Rossum, Andy Samberg, Liev Schreiber, Reese Witherspoon, Patricia Arquette, Adrien Brody, Ellar Coltrane, Kevin Costner, Laverne Cox, Bryan Cranston, Benedict Cumberbatch, Eric Dane, Viola Davis, Carrie Fisher, Ethan Hawke, Felicity Jones, Rashida Jones, Michael Keaton, Lenny Kravitz, Matthew McConaughey, Matt McGorry, Eddie Redmayne, Tony Revolori, Julia Roberts and J.K. Simmons.

Actress Debbie Reynolds will receive the Lifetime Achievement Award.

The SAG Awards will be handed out in a ceremony broadcast live on TBS and TNT starting at 8 p.m. ET.

See the full list of nominees below:

Motion Pictures:

Outstanding Performance by a Male Actor in a Leading Role

Steve Carell, "Foxcatcher"
Benedict Cumberbatch, "The Imitation Game"
Jake Gyllenhaal, "Nightcrawler"
Michael Keaton, "Birdman"
Eddie Redmayne, "The Theory of Everything"

Outstanding Performance by a Female Actor in a Leading Role

Jennifer Aniston, "Cake"
Felicity Jones, "The Theory of Everything"
Julianne Moore, "Still Alice"
Rosamund Pike, "Gone Girl"
Reese Witherspoon, "Wild"

Outstanding Performance by a Male Actor in a Supporting Role

Robert Duvall, "The Judge"
Ethan Hawke, "Boyhood"
Edward Norton, "Birdman"
Mark Ruffalo, "Foxcatcher"
J.K. Simmons, "Whiplash"

Outstanding Performance by a Female Actor in a Supporting Role

Patricia Arquette, "Boyhood"
Keira Knightley, "The Imitation Game"
Emma Stone, "Birdman"
Meryl Streep, "Into the Woods"
Naomi Watts, "St. Vincent"

Outstanding Performance by a Cast in a Motion Picture

"Birdman"
"Boyhood"
"The Grand Budapest Hotel"
"The Imitation Game"
"The Theory of Everything"

Television Programs:

Outstanding Performance by a Male Actor in a Television Movie or Miniseries

Adrien Brody, "Houdini"
Benedict Cumberbatch, "Sherlock: His Last Vow"
Richard Jenkins, "Olive Kitteridge"
Mark Ruffalo, "The Normal Heart"
Billy Bob Thornton, "Fargo"

Outstanding Performance by a Female Actor in a Television Movie or Miniseries

Ellen Burstyn, "Flowers in the Attic"
Maggie Gyllenhaal, "The Honorable Woman"
Frances McDormand, "Olive Kitteridge"
Julia Roberts, "The Normal Heart"
Cicely Tyson, "The Trip to Bountiful"

Outstanding Performance by a Male Actor in a Drama Series

Steve Buscemi, "Boardwalk Empire"
Peter Dinklage, "Game of Thrones"
Woody Harrelson, "True Detective"
Matthew McConaughey, "True Detective"
Kevin Spacey, "House of Cards"

Outstanding Performance by a Female Actor in a Drama Series

Claire Danes, "Homeland"
Viola Davis, "How to Get Away With Murder"
Julianna Margulies, "The Good Wife"
Tatiana Maslany, "Orphan Black"
Maggie Smith, "Downton Abbey"
Robin Wright, "House of Cards"

Outstanding Performance by a Male Actor in a Comedy Series

Ty Burrell, "Modern Family"
Louis C.K., "Louie"
William H. Macy, "Shameless"
Jim Parsons, "The Big Bang Theory"
Eric Stonestreet, "Modern Family"

Outstanding Performance by a Female Actor in a Comedy Series

Uzo Aduba, "Orange is the New Black"
Julie Bowen, "Modern Family"
Edie Falco, "Nurse Jackie"
Julia Louis-Dreyfus, "Veep"
Amy Poehler, "Parks and Recreation"

Outstanding Performance by an Ensemble in a Drama Series

"Boardwalk Empire" (HBO)
"Downton Abbey" (PBS)
"Game of Thrones" (HBO)
"Homeland" (Showtime)
"House of Cards" (Netflix)

Outstanding Performance by an Ensemble in a Comedy Series

"The Big Bang Theory" (CBS)
"Brooklyn Nine-Nine" (Fox)
"Modern Family" (ABC)
"Orange is the New Black" (Netflix)
"Veep" (HBO)

SAG Awards Honors For Stunt Ensembles:

Outstanding Action Performance by a Stunt Ensemble in a Motion Picture

"Fury"
"Get On Up"
"The Hobbit: The Battle of the Five Armies"
"Unbroken" "X-Men: Days of Future Past"

Outstanding Action Performance by a Stunt Ensemble in a Comedy or Drama Series

"24: Live Another Day" (Fox)
"Boardwalk Empire" (HBO)
"Game of Thrones" (HBO)
"Homeland" (Showtime)
"Sons of Anarchy" (FX)
"The Walking Dead" (AMC)

Screen Actors Guild 21st Annual Life Achievement Award

Debbie Reynolds