SAW V
My "Must GO" rating is specifically for those who have seen AT LEAST "Saw 3" and Saw 4" because to go in an see 5 without some "back-up" or familiarity with the characters and who the BAD GUY is, or who we THINK it is and even THAT changes from movie to movie - leaves an unfamiliar viewer gong, "HUH?" so that seeing a couple of prequels brings SAW V t together BEAUTIFULLY. (With the exception of some of the subtle nuances you REALLY had to watch all the movies to get.)
My recommendation is to see SAW V - but do make an attempt to catch a couple of the prequels - before you go. It'll tie it all together for you and THAT is a lot of the enjoyment of the SAW series!! THEN GO SEE SAW V AGAIN!! THEY'RE (I mean ALL OF 'EM) ARE THAT GOOD!!
Suzy, Alameda, CA