I'm glad I watched this. It is a good production of a neglected (and in my opinion unjustly so) play. Leonard Rossiter gives a magnificent performance in the title role. There are, as well as him, many other very good performances (notably Claire Bloom as Constance and John Thaw as Hubert). The film however was very obviously filmed entirely indoors and does not attempt to hide the fact. Due to this, the supposedly outdoor sets are very bad, some of it unnecessary. For some reason, when the scene is in France they painted Fleur-de-Lys in the sky and the town walls of Angiers look like what you'd expect from a children's playground. However in spite of this I enjoyed it very much. It has excellent acting, quite good costumes (though again, some of this looks a little stagy) some nice Medieval music and good directing.
Overall 8/10.