Mum-of-six Katie flaunted her post-pregnancy body in a skintight black jumpsuit and mega heels, keeping toasty with a furry black jacket.
Hubby Kieran, meanwhile, also chose an all-black colour scheme and channelled a bit of Simon Cowell with his unbuttoned to the chest shirt. Are you not cold, Kieran?!
Kieran was pictured clutching the couple's tickets to the world premiere as they posed for pictures outside the Odeon Leicester Square on a chilly Monday night (10 November).
Posing for photographers, Katie flaunted her cleavage... perhaps as a reminder she's about to go under the knife for her seventh boob job after claiming her current breasts are "saggy" after having two children in two years.
The 36-year-old has previously had four enlargements, one shape change and one reduction
Meanwhile, last night marked the couple's first red carpet appearance together since news that Kieran had cheated on Katie broke back in May. At the time, Katie was pregnant with their second child and heartbroken to learn Kieran had been sleeping with her best friend.
After initially vowing to divorce him, the model and author did a U-Turn and took him back, but warned if Kieran cheated again she would walk.
She said on ITV's This Morning last week: "I will never forgive him. And it was two of my best friends. I never will [get over it], it paralyses me every day, but I try and be positive in life and he's getting help. He's had rehab. It's not a sex addiction, it's like that, but it's adrenaline.
"Lots of things happened to him as a kid, which I never knew until all of this happened. I'm not saying it's an excuse for it, but I'm still gobsmacked he's done it. I was in shock myself. But he's done me a favour, my friends are obviously not my real friends. He does have a problem and he's obviously getting help for it."
Katie also said that despite everything that has happened, she is in a good place and is looking forward to her future with Kieran.
"I actually am [happy]. I'm still seeing a therapist as well because I'm still angry at my friends, but other than that everything is so well. I've moved house, I'm looking forward to Christmas, our vows, so next year it's a fresh start. I'm excited and positive."
Katie and Kieran are parents to son Jett and daughter Bunny. Katie is also mum to kids Harvey, Junior and Princess from previous relationships.
The Hunger Games: Mockingjay Part One is released in cinemas on 20 November.
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Copyright: WENN Mario Mitsis