  We investigate how late-time entropy production weakens the Big-Bang
Nucleosynthesis (BBN) constraints on the gravitino as lightest superparticle
with a charged slepton as next-to-lightest superparticle. We find that with a
moderate amount of entropy production, the BBN constraints can be eluded for
most of the parameter space relevant for the discovery of the gravitino. This
is encouraging for experimental tests of supergravity at LHC and ILC.
