Saw is a classic cash cow franchise.... Saw 1 did well so they cranked out another from a weak ass Darren Bousman script that was pretty confusing and lacked a good ending, but they got part 2 out just in time.
Fast forward to part 5 now, director #3, writers #3 and we've got the same freaking movie playing over and over again.... It's the same freaking time span practically, just from another god awful perspective.
Part 4 was just part 3 all over again, clever huh! and now part 5 show's how part 3 and 4 were possible.... wow, I'm on the edge of my seat... perhaps in part 6, they'll go back to part 1 and tell us its all a bad dream!