Revenge thrillers have been a movie staple as long as there have been movies. This one is the same but different. The film-maker makes no attempt to catch the sympathy of the viewer upfront--a very gutsy thing to try--and instead relies on the constant forward motion of the action to win the hearts and minds of the audience. It works, mostly. The end result is more resembles a roller coaster ride than the typical "3 Act" script. And yes it is entertaining. ((Designated "IMDb Top Reviewer." Please check out my list "167+ Nearly-Perfect Movies (with the occasional Anime or TV miniseries) you can/should see again and again (1932 to the present))
Review of Bull
