Here's our annual best attempt at listing the celebrities expected at Sundance (highly subject to change, of course), what is bringing them to the festival, and a Twitter handle if possible.
• Casey Affleck ("Gone Baby Gone" "The Finest Hours") • At Sundance for "Manchester by the Sea" (Premieres)
• Erykah Badu (singer) • At Sundance for "The Land" (NEXT)
• W. Kamau Bell (stand-up comedian, "Totally Biased") • At Sundance for "The United Shades of America" (Special Events) • @wkamaubell
• Alison Brie ("Community," "Mad Men") • At Sundance for "Joshy" (U.S. Dramatic) • @alisonbrie
• Ellen Burstyn ("The Exorcist," "Interstellar") • At Sundance for "Wiener-Dog" (Premieres)
• Kyle Chandler ("Friday Night Lights," "Carol") • At Sundance for "Manchester by the Sea" (Premieres)
• Sharlto Copley ("District 9," "The A-Team") • At Sundance for "The Hollars" (Premieres) • @sharlto
• Paul Dano ("Little Miss Sunshine," "Love & Mercy") • At Sundance for "Swiss Army Man" (U.S. Dramatic)
• Charlie Day ("Horrible Bosses" movies, "It's Always Sunny in Philadelphia") • At Sundance for "The Hollars" (Premieres)
• Brooklyn Decker (SI swimsuit covers, "Battleship") • At Sundance for "Lovesong" (U.S. Dramatic) • @BrooklynDecker
• Danny DeVito ("Taxi," "Twins") • At Sundance for "Wiener-Dog" (Premieres) • @DannyDeVito
• Lena Dunham ("Girls," "Tiny Furniture") • At Sundance as a juror; producer of "Suited" (U.S. Doc); Cinema Café event with Norman Lear • @lenadunham
• Lisa Edelstein ("House," "Girlfriend's Guide to Divorce") • At Sundance for "Joshy" (U.S. Dramatic) • @lisaedelstein
• Greta Gerwig ("Mistress America," "Frances Ha") • At Sundance for "Wiener-Dog" (Premieres)
• Steve Gleason (New Orleans Saints star) • At Sundance for "Gleason" (U.S. Documentary) • @TeamGleason
• Danny Glover ("Lethal Weapon," "2012") • At Sundance for "Mr. Pig" (Premieres) • @mrdannyglover
• Selena Gomez (pop singer, "Spring Breakers") • At Sundance for "The Fundamentals of Caring" (Premieres) • @selenagomez
• Rachel Griffiths ("Six Feet Under," "Muriel's Wedding") • At Sundance for "Mammal" (World Cinema Dramatic)
• Anna Gunn ("Breaking Bad," "Deadwood") • At Sundance for "Equity" (U.S. Dramatic)
• Kathryn Hahn ("The Visit," "Transparent") • At Sundance for "Captain Fantastic" (Premieres)
• Jon Hamm ("Mad Men," "Million Dollar Arm") • At Sundance to be a juror
• Chelsea Handler (comedian, talk-show host, author) • At Sundance for "Chelsea Does" (Special Event) • @chelseahandler
• Dulé Hill ("Psych," "The West Wing) • At Sundance for "Sleight" (NEXT) • @dulehill
• Boyd Holbrook ("Narcos," "Gone Girl") • At Sundance for "The Free World" (U.S. Dramatic)
• Allison Janney ("The West Wing," "Mom," "Spy") • At Sundance for "Tallulah" (U.S. Dramatic) • @AllisonBJanney
• Nick Jonas (Pop singer, "Kingdom") • At Sundance for "Goat" (U.S. Dramatic) • @nickjonas
• Riley Keough ("Mad Max: Fury Road," "The Runaways") • At Sundance for "Lovesong" (U.S. Dramatic)
• Keegan-Michael Key ("Key & Peele," "Pitch Perfect 2") • At Sundance for short-film jury • @KeeganMKey
• Greg Kinnear ("Little Miss Sunshine," "Heaven Is for Real") • At Sundance for "Little Men" (Premieres)
• John Krasinski ("The Office," "13 Hours") • At Sundance for "The Hollars" (Premieres) • @johnkrasinski
• Zoë Kravitz ("Mad Max: Fury Road," "Divergent" ) • At Sundance for "Too Legit" (shorts)
• Nick Kroll (comedian, "Kroll Show") • At Sundance for "Joshy" (U.S. Dramatic) • @nickkroll
• Jacob Latimore (R&B singer, "The Maze Runner") • At Sundance for "Sleight" (NEXT) • @jacoblatimore
• John Legend (singer/pianist/composer) • At Sundance for promoting TV series "Underground" • @johnlegend
• Justin Long ("Tusk," Apple ads) • At Sundance for "Yoga Hosers" (Midnight) • @justinlong
• Diego Luna ("Milk," "The Terminal") • At Sundance for "Mr. Pig" (Premieres) • @diegoluna_
• Jena Malone ("The Hunger Games." "Inherent Vice") • At Sundance for "Lovesong" (U.S. Dramatic) • @malonejena
• Zosia Mamet ("Girls") • At Sundance for "Wiener-Dog" (Premieres) • @ZosiaRMamet
• Thomas Middleditch ("Silicon Valley," "The Wolf of Wall Street") • At Sundance for "Joshy" (U.S. Dramatic) • @Middleditch
• Viggo Mortensen ("Lord of the Rings," "Eastern Promises") • At Sundance for "Captain Fantastic" (Premieres)
• Elisabeth Moss ("Mad Men," "Top of the Lake") • At Sundance for "The Free World" (U.S. Dramatic)
• Chad Michael Murray ("Agent Carter," "One Tree Hill") • At Sundance for "Outlaws & Angels" (Midnight) • @ChadMMurray
• Sam Neill ("Jurassic Park," "The Horse Whisperer") • At Sundance for "Hunt for the Wilderpeople" (Premieres) • @TwoPaddocks
• Ellen Page ("Juno," "Freeheld") • At Sundance for "Tallulah" (U.S. Dramatic) • @EllenPage
• Adam Pally ("The Mindy Project," "Happy Endings") • At Sundance for "Joshy" (U.S Dramatic) • @adampally
• Imogen Poots ("Fright Night," "Need for Speed") • At Sundance for "Frank & Lola" (Premieres), "Green Room" (Spotlight) • @imogenpoots
• Daniel Radcliffe ("Harry Potter," "Victor Frankenstein") • At Sundance for "Swiss Army Man" (U.S. Dramatic)
• Robert Redford ("Butch Cassidy & the Sundance Kid," "Truth" • At Sundance for ... runs the place
• Paul Rudd ("Ant-Man," "Admission") • At Sundance for "The Fundamentals of Caring" (Premieres)
• Maya Rudolph ("Bridesmaids," "Sisters") • At Sundance for "Mr. Pig" (Premieres) • @MayaRudolph
• Ben Schnetzer ("Pride," "The Book Thief") • At Sundance for "Goat" (U.S. Dramatic) • @BenSchnetzer
• Alia Shawkat ("Arrested Development," "Life After Beth") • At Sundance for "The Intervention" (U.S. Dramatic), "Green Room" (Spotlight) • @ShawkatAlia
• Jenny Slate ("Obvious Child," "Married") • At Sundance for "Joshy" (U.S. Dramatic) • @jennyslate
• Octavia Spencer ("The Help," "Fruitvale Station") • At Sundance for "The Free World" (U.S. Dramatic) • @octaviaspencer
• Luke Wilson ("Concussion," "The Royal Tenenbaums") • At Sundance for "Outlaws & Angels" (Midnight)
• Mary Elizabeth Winstead ("Scott Pilgrim vs. The World," "10 Cloverfield Lane") • At Sundance for "Swiss Army Man" (U.S. Dramatic) • @M_E_Winstead
• Steve Zahn ("Diary of a Wimpy Kid" films, "Dallas Buyers Club") • At Sundance for "Captain Fantastic" (Premieres)
• Rob Zombie (Heavy-metal musician) • At Sundance for"31" (Midnight) • @RobZombie