Using lots of color movie film ends I've come up with two processes.....High contrast/saturated color and low contrast/muted color. Both processes will deliver very nice reproduction using Kodak Portra III paper. ( It's what I got)..
Develop in C-41 at 85 degrees F for three minutes, Bold and contrasty but nice.
Develop in RA-4 at 95 degrees F for three minutes for smooth lower contrast and muted color.
Using FOUR, 1 minute rinses (at same temperature), after the developer will effectively remove all traces of remjet coating.
The Kodak 500D and Fuji 64D have amazing exposure lattitude. I've used indexes as high as 32,000 with interesting, if not beautiful results. Experiment and enjoy!