Sienna Miller touched down at Heathrow Airport yesterday with a Stetson hat in hand. Sienna's boyfriend, Tom Sturridge, wasn't along for her travels, but the pair spent part of June in Chicago, where they were spotted picking up beers to take back to their hotel. Sienna wrapped up her London stage production of Flare Path earlier that month and since then has been shooting Just Like a Woman in New Mexico. She's also been spending time with family and friends. Tom and Sienna attended the French Open together and hung out with his pals Kristen Stewart, Robert Pattinson, and Garrett Hedlund during a fun night out in London. Sienna's still pursuing her passions for fashion and philanthropy, too. JewelMint founders Kate Bosworth and Cher Coulter recently named a bracelet after the actress and are giving the proceeds from the piece to one of Sienna's favorite causes, the International Medical Corps.