This is a beautiful and moving documentary, well worth watching for anyone interested in art or the sea! I agree with the other reviewer - Daalder does add some self-aggrandising material that the film could do without, but the content of the Ader material is so strong that I'm still giving it 5 stars. Daalder does write really well (elsewhere) on Ader and it's great to see such a thorough treatment of his work as he's a very under-recognised artist. Lovely contributions by Tacita Dean and Eric Ader and fascinating interview footage with Bas Jan's wife, Mary Sue. Recommended.