The actor won for his lead role in 'The Disaster Artist.'
From Angelina Jolie's ethereal Ralph & Russo gown to Gal Gadot's glitzy Prada dress, to Jessica Biel's bold ensemble by Oscar de la Renta, there were several stunning looks on the blue carpet.
The pint-sized star tearfully invited her fellow nominees to ice cream -- then met Angelina Jolie!
The man behind 'The Shape of Water' took the stage to accept Best Picture, but used the moment to call for equality for women in Hollywood.
Hollywood continued to show support for one another at Thursday's ceremony.
The couple also opened up about birthday party plans for their son, Ford, while speaking with ET at the 2018 Critics' Choice Awards.
The actresses didn't hold back when it comes to pay inequality and sexual harassment in Hollywood, even naming Mark Wahlberg in their comedic bit.
Margot Robbie, meanwhile, won a Critics' Choice Award for her role as Tonya Harding in 'I, Tonya.'
The stars stepped out in a plethora of white ensembles for Thursday's ceremony.
There's a 'good baby' on the way!
ET caught up with the 'This Is Us' star and his wife Michelle Bathe at the Critic's Choice Awards in Los Angeles on Thursday.
The director also opened up about the immense success of 'The Shape of Water.'
During her acceptance speech, the 'Wonder Woman' star acknowledged the Time's Up movement and called for more female-led films in Hollywood.
Munn also slammed men for not speaking out about Time's Up at the Golden Globes.
