Ok, it's not 'retro' in content, but this is the first trailer for the movie remake of the cult 70s cop show The Sweeney.
There's a Regan (Ray Winstone) and there's a Carter (Plan B / Ben Drew), but the scenario is modern-day Britain, not the mid-1970s, which might be a disappointment for some (although those kind of films rarely work).
As for the plot of this Nick Love directed movie, that's not clear. But the trailer gives you an idea of what to expect. It hits UK cinema screens on September 21st.