The stars of Feud: Capote Vs. the Swans wore coordinating looks on the red carpet Tuesday.
The cast members each wore monochromatic looks, with Moore in a sequin and feather Balmain gown that evoked the shape of a swan and Watts in a lace dress with cutouts and a swan-shaped purse.
Series star Tom Hollander also attended the premiere, along with Emma Roberts, Zac Posen, Debbie Harry, Sonja Morgan and other celebrity guests.
Feud is an anthology series co-created by Ryan Murphy that explores a famous feud in each season.
Capote Vs. the Swans focuses on writer Truman Capote's conflict with the "swans," a group of elite women in high society New York.Hollander plays Capote, with Watts, Lane, Sevigny, Flockhart, Moore and Ringwald as the swans.
FX released a trailer this month that hints at how Capote ultimately betrayed the swans by exposing their secrets in his unfinished final book, Answered Prayers.