  Warped supergravities with lower-dimensional branes provide consistent
field-theoretic framework for discussion of important aspects of modern string
theory physics. In particular, it is possible to study reliably supersymmetry
breakdown and its transmission between branes. In this talk we present two
versions of locally supersymmetrized bigravity - one with unbroken N=1,d=4
supersymmetry, and the second one with all supersymmetries broken by boundary
conditions.
