 While it may be true that the scene where Robert De Niro (qv)  stands before the mirror and asks his reflection, "You talkin to  me? Well, I dont see anyone else here" was improvised, the exchange  is a quotation from _Shane (1953)_ (qv) where Alan Ladd (I) (qv)  and Ben Johnson (I) (qv) square up to one another just before  their barroom brawl.