I just caught the end of 'A Few Good Men' after the Eurovision purgatory my children insisted on.
I've seen it loads of times (you want the truth... you can't handle the truth) but it never struck me before that Jack Nicholson seemed to be in some way impersonating James Cagney - the hooded eyes, the bulky visage, the slightly opened mouth.
Was he deliberately 'homaging' Jimmy in this character? I'll probably go and look this up and find the whole world has been discussing this for years but I never thought of it before.
Maybe it was just my take-away chinese acting up?