Funny thing is Ford is probably getting some of the CG de-aging himself for Indy V. Not for the whole film probably but pictures on set show him with dots on his face during a possible World War II sequence, probably a flashback with Indy in his prime.

My problem with the dark scenes is that they had them both on Tatooine *and* on the Obi-Wan/Vader fight planet, so for a minute it's a bit disorienting on where the scene is. AOTC was criticized for a similar problem, since Tatooine and Geonosis had dark scenes at the same time and looked fairly similar at first glance.