A film that includes a first reflective polarizer substantially reflecting light
having a first polarization state and substantially transmitting light having a
second polarization state, a polarization rotating layer or depolarizing layer
(or both) positioned to receive light passing through the first reflective polarizer,
and a second reflective polarizer positioned to receive light passing through the
polarization rotating layer or depolarizing layer, the second reflective polarizer
substantially reflecting light having a third polarization state back through the
polarization rotating layer or depolarizing and substantially transmitting light
having a fourth polarization state. Articles containing the film can be formed.