Interesting comments from the Get Carter director. The minor roles were supplied by a local agency and extras the extras were all locals of course, so I would imagine minimal instructions were. Given to the pub singer or the drinkers wife. Just improvise a fight. The ladies involved both looked as though they would never shy from consultation. They may have battled for quite sometime before it was edited down. When the plot is unaffected by the outcome of who wins it is always more realistic and preferable to let the ladies just do it.