This work deals with the influence of thermal radiation on the problem of
the mixed convection thin film flow and heat transfer of a micropolar fluid past a moving
infinite vertical porous flat plate with a slip velocity. The fluid viscosity and the thermal
conductivity are assumed to be the functions of temperature. The equations governing the
flow are solved numerically by the Chebyshev spectral method for some representative
value of various parameters. In comparison with the previously published work, the
excellent agreement is shown. The effects of various parameters on the velocity, the
microrotation velocity, and the temperature profiles, as well as the skin-friction coefficient
and the Nusselt number, are plotted and discussed.