  The classical problem of foam film rupture dynamics has been investigated
when surfaces exhibit very high rigidity due to the presence of specific
surfactants. Two new features are reported. First a strong deviation to the
well-known Taylor-Culick law is observed. Then, crack-like patterns can be
visualized in the film; these patterns are shown to appear at a well defined
deformation. The key role of surface active material on these features is
quantitatively investigated, pointing the importance of surface elasticity to
describe these fast dynamical processes, and thus providing an alternative tool
to characterize surface elasticity in conditions extremely far from
equilibrium. The origin of the cracks and their consequences on film rupturing
dynamics are also discussed.
