Old topic but for those still looking for it since it came very handy for batch processing Magic Lantern Raw files and cleaning them up.
You can import your files to AE, drag them to new comp, have it make a SINGLE new comp. Then use the REMOVE GRAIN effect, lower the amount but make sure temporal filtering is enabled, this is the best way of cleaning noise and similar to neat. Also set preview to final output. Then select all layers in comp and use the ‘render layers’ script from redefinery(google it). Set it to only do the length of the layer and place it somewhere.
Hope this helps for other users, significantly improves my raw workflow speed.