PHOTO GALLERY: Sienna Miller Walks the Dog

Sienna Miller is totally dogging it.

The G.I. Joe actress—who made her Broadway debut recently in After Miss Julie, co-starring Jonny Lee Miller—was spotted in New York’s SoHo neighborhood on Monday, talking her pooch for a walk while gabbing on the cell phone.

Better hold onto that leash, Sienna; bad things can happen when owners let their dogs run loose.

Click through the pics to see Sienna Miller get hounded.