I just downloaded a digital copy of Real Steel to put on my PB and now all I get is "Cannot play DRM protected files". I understand the copyright issues, however I did pay for digital copy for the sole purpose to watch on my PB. Don't need the digital copy on laptop, I have the disc for that.
Not possible unless you remove the DRM somehow... If you search digital copy FAQ you will see each move studio only supports certain programs to play such copies and usually list the one that do not play them.