Millie Bobby Brown stuns in polka dots and denim as she launches Americana clothing collection

Millie Bobby Brown is celebrating the launch of her latest collection on social media.

In a recent Instagram post, the 22-year-old actress announced the launch of Americana, the latest collection from her clothing line, Florence by Mills Fashion.

The "Enola Holmes" star posed for a selfie in a tight blue shirt with white polka dots, a deep V-neckline, and capped sleeves. She paired the look with a denim skirt and a red bandanna in her hair.

She posed for the photos next to a vintage red convertible parked at a gas station...