  We consider various neutrino mixing matrix parametrizations and the
dependence of the mixing angles and CP-violating phase on the different
parametrizations. The transformations of neutrino mixing parameters between
various parametrizations are presented. Although the $\theta_{13}$ mixing angle
is determined to be small in the conventional parametrization, we note that in
several other parametrizations the values of $\theta_{13}$ are quite large.
Should the value of $\theta_{13}$ turn out to be tiny in the conventional
parametrization, this study suggests that other alternative mixing matrix
representations would be more suitable for dertermining the value of the
CP-violating phase.
