She only gave birth to her son five months ago.
But Jennifer Garner was stunning as she hit the red carpet for the first time since welcoming her new arrival with husband Ben Affleck.
The actress sizzled in a scarlet draped Lanvin dress that showed off her fabulous post-baby physique at the premiere of her new film The Odd Life of Timothy Green.
She accessorised with peeptoe sandals, a romantic wavy updo and sultry eye make-up.
Jennifer gave birth to baby Samuel in February.
The couple are already parents to daughters Violet and Seraphina.