"I'm walking here! I'm walking here!" Shuffling, perhaps. One can always count on Hoffman and his ability to absorb the character he is portraying with such ease. He has a knack at portraying that deep, bronchial coughing schtick. When watching, I had to wear a surgical mask - just in case. Voight, as usual, is magnificent as the innocent amongst the scum. Watching this wide eyed lone ranger slowly losing the tassels from his jacket is a deeply moving experience. A word of warning, you may want to use antibacterial wipes on your tv screen after watching Hoffman here. One cannot be too careful.

• Potential Kermode