So what sick mofo other than Andy Murray will be watching this monster of a movie?

I wouldn't want to see that type of movie in the cinema really but I do download them to admire the creativity used for the traps.

Anyway, from looking at the trailers here are some of the traps:

Hair trap
Woman has her hair attached to something which slowly pulls it in making her head move back.

Chains
Two people are attached to a chain that has a machine in the middle that pulls it in, if triggered. One of the men has had his eyes sown shut and the other has had his mouth sown together. The key to unlock the mute is behind the neck of the blind man. And the blind man activates the pulling mechanism when he tries to walk away but only the mute will know this. Obviously there is no communication here due to their circumstances.

Knifes
Man has his arms and legs clamped. To open those clamps he must push open a sort of gate of knifes using his head.

I might watch it, if I get time.  Theres still other films I want to see first.

Although I watched Saw 3 at the cinema and went "Yuck" Twice - throughout the whole film, while other people would not shut up during the film.  Even my friend wasn't quiet.  Some people are just soft