  This paper exploits the theory of geometric gradient flows to introduce an
alternative regularization of the thin-film equation. The solution properties
of this regularization are investigated via a sequence of numerical simulations
whose results lead to new perspectives on thin-film behavior. The new
perspectives in large-scale droplet-spreading dynamics are elucidated by
comparing numerical-simulation results for the solution properties of the
current model with corresponding known properties of three different
alternative models. The three specific comparisons in solution behavior are
made with the slip model, the precursor-film method and the diffuse-interface
model.
