Sienna
Miller
and
new
co-star
Keira
Knightley
have
hit
it
off
so
well
they
have
been
spending
plenty
of
time
off-set
with
each
other
too.
The
pair,
which
is
starring
together
in
The
edge
of
love,
a
romantic
drama,
has
been
seen
fooling
about
together
on
the
set
before
filming.
And
now
the
two
stunning
actresses
have
been
spotted
enjoying
a
meal
at
the
trendy
Archipelago
restaurant
off
London's
Tottenham
Court
Road,
a
venue
frequented
by
top
celebrities
including
Prince
William.
The
two
also
turned
up
in
matching
black
boots,
tights
and
sporting
similar
short
dresses,
and
are
obviously
enjoying
each
other's
company.
Keira
recently
told
a
lifestyle
magazine,
"I
wish
I
was
Sienna
Miller." She
added,
"I
watch
that
girl
and
she's
just
fabulous.
She
talks
to
everyone
and
laughs
and
smiles
and
looks
as
if
she
is
genuinely
enjoying
herself."
The
couple
enjoys
what
has
been
described
as
a
"steamy" threesome
scene
in
the
movie,
along
with
actor
Mathew
Rhys,
although
things
could
have
been
very
different.
Troubled
actress
Lindsay
Lohan
was
originally
supposed
to
take
Sienna's
part,
but
mysteriously
dropped
out.