easy.

layout UVs for both of the faceGroups. maybe use planar projection with "Best Plane" checked in the optionsbox. then assign a different shader to each faceGroup. in the shader map Color with the first file of your image sequence. I don´t know if maya plays complete films like avi etc. but if not use a image sequences of PNG, Targa, or even JPG maybe.

for maya showing Image Sequences there is a very specific naming convention for the imageFiles. AVOID! -> [_] (underscores) and use [.] (points) like filename.number.extension
otherwise maya can´t read them properly and just shows black space.

movie.475.png

It took me quite some time myself to find out XD, because I am used to underscores usually.

in the file texture node click Image Sequence instead of image.

render

done