Sienna Miller Guided by Seeing Eye Friend

8/31/2007 2:05 PM PDT BY TMZ STAFF
Everyone could use a good pal to lean on -- after a long night of partying! Another round?
Sienna Miller
A wobbly, dazed and confused Sienna Miller (right) needed her human crutch as she exited the launch of her new fashion line, Twenty8Twelve, in London on Thursday. Walk for me!

Without the assistance, it could have been bottom's up for Sien!