Filmmaker
Jason
Reitman
is
all
set
to
start
another.
It
is
said
that
his
new
film
will
be
an
adaptation
of
the
book
Up
In
The
Air
written
by
novelist
Walter
Kirn.
Jason's
father
Ivan
Reitman
owns
the
rights
to
the
novel.
This
film
with
budget
between
$12
to
$15
million
is
expected
to
start
shooting
by
the
end
of
this
year.
Walter
Kirn's
novel
Thumbsucker
was
also
adapted
as
a
feature
film
in
2005.