The former Made In Chelsea star, already a fan of the selfie, took to Instagram to photograph the heck out of the glittering bash on 18 May.
And, to be fair, we are totally loving the snaps!
Joined by her husband Professor Green, Millie got herself glammed up and ready for the star-studded bash.
After she'd slipped on her gold Julien Macdonald dress, hubby Pro couldn't help but checking out her... assets. Ha!
Millie joked: "Just asked @professorgreen if he approved of tonight outfit.. #baftas."
The couple were joined by celebrity chef Gizzi Erskine on the night, as well as Inbetweeners actress Emily Atack.
Emily posted a snap of Millie and Pro on her own Instagram, and it looks like the trio were sat together at dinner.
She said: "WE'RE STARVING! @professorgreen @camillamackintosh #bafta."
Millie's was one of many beautiful dresses on the night.
And if you like her dramatic make-up, we've got on hands on her step-by-step how to! You're welcome.
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