the question is somewhat an academic one - not my film, just a cog here - but I'm really interested in why you would identify that as a style a film would need. As for a pov and long - if you have a say a spy watching a suspect a long lens, binoculars or not, will provide a sense of voyeurism to the shot. I can think of several of examples - great tool.
going to have to re-watch some Ridley Scott and look for the long lenses more (any excuse will do). Long lens and shallow dof - just trying to picture it. - cheers m