Keanu Reeves vehicle John Wick: Chapter 4 may be an action movie masterpiece, if excessive violence is the benchmark

Worldwide box office sales are tipped to reach more than $US100 million ($148.5 million) by Sunday, according to Variety. (Supplied: Lionsgate/Murray Close)

If nothing succeeds like excess, then John Wick: Chapter 4 must be some kind of action movie masterpiece.

At almost three hours, the latest instalment of the Keanu Reeves hit man franchise delivers more action, more villains and more convoluted mythology than even its entertainingly overstuffed predecessors, offering fans a veritable degustation of violence.