Recently I have seen Anthony McCall exhibition. Four of his light films were projected in a dark space. The light cut through darkness of the exhibition hall marking lines on the floor and moving slowly. What was the show's main strength was its simplicity, all the elements including the interior space were minimal and this only highlighted the projected films and forced the viewer to focus on them and follow the movement of the lines.
The darkness filling the room also forced one to focus on works in a more direct way - not only the works stood out but also were the only point of reference for the viewer. Coming from bright spaces into a dark area as such, it took me about 10-15 minutes to fully adjust and be able to see anything other than the projections. This may be linked also to films' duration - they are all about 15 minutes long.