I only say potential because I have yet to give it a try. It makes a lot of sense though. Thanks to a post we found on XDA by ogdobber you should be able to easily make this work. You will need to pick up the Google Video APK which can be located HERE, thanks to MaSt3rGrIfF. Once you have that installed open up terminal emulator. You can do that the easy way with a PC or the APP way using Android terminal elmulator or similar apps.
Now in terminal do the following, being sure to hit ENTER after each line –
su mount -o rw,remount /system mv /system/bin/su /system/bin/mu
This will rename the SU section in your device to MU. SU stands for Super User as we are all aware. This is what the service or the app searches for before it gives you access. Now don’t forget to revert it back when you are done. This is the same thing some of our favorite apps look for and use to work. Which is a big part of why we root. To reverse it back type these in.
mu mount -o rw,remount /system mv /system/bin/mu /system/bin/su
All done. Now you are back to how you were before. Let us know if you are successful with this work around. As time progresses I am sure there will be a much easier way to enjoy those rented movies on our rooted devices. You can keep up the discussion and potentially other work a rounds at this XDA Thread.
Source: XDA