After going to see the Anslem Kiefer exhibition at the RA, I watched the moving and physical DVD  Over cities grass will grow a documentary on the work of Kiefer by Sophie Fennes. It was so moving and powerful to see how he works on such a grand scale and very interesting to see the works from the exhibition being made. Kiefer is surrounded by large pots of  stuff, paint, concrete, rubble, rock. Calm and sometimes dramatic music accompanies the film setting the scene. His assistants are on hand, acting on his command. Highly recommended  if you have been or about to go to the exhibition and simply love the work of Anslem Kiefer.