If you've got nothing better to do, it's a great film
But I'm not sure a lot of people will go and see it because they will assume it's crap. But that's the point, it takes itself SO seriously it's actually funny.
Everyone overacts to such a great degree you could almost think it was a black comedy rather than a serious martial arts film.
If you think of it as what Blazing Saddles was for westerns, you won't be disappointed, there is everything you could want in this film, from Expendables levels of violence to Rambo 4 levels of blood and guts to a fairly haphazard plot line which sort of makes sense, but sometimes feels it needs to explain stuff without actually taking the plot along any further.
Just put your brain on autopilot and sit back and enjoy.
It's a 4 star film from this man (but perhaps it's not going to be the sort of film your gran will like).