POPSUGAR Celebrity Sienna Miller Slide Photo of Sienna Miller Arriving at Heathrow, Back from Sydney Welcome Home by Celebrity 7/22/09 0 Shares Like us on Facebook Sienna Miller smiled as she arrived at Heathrow on Tuesday. Read More HotSienna Miller Sienna Miller The Prettiest Dresses We've Ever Seen Are Walking the Red Carpet at Cannes 28 All-White Looks to Master Just in Time For Memorial Day We Spy: Is 2015 Taylor Swift's Best Year Ever? Sienna Miller Breaks From Cannes Duties For Bikini Time Get the scoop with our daily newsletter TV A-Listers Movies Young Hollywood Sign up with By signing up, I agree to the Terms and to receive emails from POPSUGAR. ashln 5 years seriously...she looks like she's about to pop. jenni5 5 years Knocked up? 5 years Actually she looks like death warmed over. Shocking 5 years She looks so frumpy all the time. jaan_black 5 years skank looks like she's 9 mo pregnant Marlowe 5 years I love her "besace" bag by YSL.its awesome.