ThedevilChoose When a movie has you begging for it to end not even half way through it's pure crap. We've all seen this movie and this characters millions of times, nothing new in it. Don't waste your time.

FirstWitch A movie that not only functions as a solid scarefest but a razor-sharp satire.

Robert Joyner The plot isn't so bad, but the pace of storytelling is too slow which makes people bored. Certain moments are so obvious and unnecessary for the main plot. I would've fast-forwarded those moments if it was an online streaming. The ending looks like implying a sequel, not sure if this movie will get one

Fleur Actress is magnificent and exudes a hypnotic screen presence in this affecting drama.

j889 Sanctum is one of the best film about scuba diving, more to the point, cave diving. Cave diving unlike scuba diving require special skills: the way you move your fins, how you trim, and it requires additional equipment: primary, secondary torches, back up torches, helmet etc... This film depicts scuba diving and cave diving quite accurately. It shows the thrill and the danger involved, and it shows what's the moral and discipline, courage that's necessary for a good scuba/ cave diver. I'm a scuba diving enthusiastic myself. My friends lost someone in one of the diving trips. Practice and discipline are crucial for diving activities. There are just so many armatures going to difficult dive sites, and sadly that's exactly how accident happen. That's why when I see amateurs I always try to warn them about the danger involved.Now, about the film, As a skilled dive you can tell most of the actors, if not all are not skillful divers because they rarely obtain balance in the water, constantly kicking their fins. There is a tiny bit of problem with the beginning of the film: when Frank and Judas pass that restriction, even though they drop their large spare tank, as an experience cave diver, they should have smaller tank attach to their gear, and many cave divers bring spares of everything: mask, regulator, tank etc...With these flaws, this film is still one of the best film about diving.

tenacious00 I was utterly surprised with negative reviews of this movie. This is not existential "War and Piece" drama, this is action/adventure thriller. And I am writing this to restore justice. There are few main reasons to watch this good movie:1. Superb underwater and terrain footage, both outstanding in beauty and realism. ( Compare to James Bond flicks with underwater footage which plausibility can be contested by kids) 2. The cast is doing very good job. Each character has time on stage to show his(her) evil and good features. And of cause they are all tested by nature. 3. The plot, although simple, yet realistic. 4. The conversations are short and even abrupt. But…….are you expecting metaphysical dialogs from people stuck hundreds of meters underground whose lives are on line? 5. Being thriller/action by nature this movie still delivers some moral lessons, or food for thought as I will call it. The nature ( wrath of God ) is testing each member of expedition. And under pressure they either crack or get forged into stronger people. Special thanks to Richard Roxburgh as Frank, he was superb."Sargent-major of caves" knows how to save lives,but he knows how when to sacrifice them too. At least 7.5 from me. Watch this movie and be thrilled.

ExpendableMan For a film that goes so deep underground, Sanctum is a remarkably shallow experience. Playing out like The Descent with more water and no monsters, it's a beautifully shot survival flick but it's populated with characters so bland that you won't care one bit if they survive or not. And you'll probably be able to figure out what order they'll run out of oxygen in as well. In fact, it's not that surprising that as his sticky fingers are all over the post-production and cinematography, this feels like a James Cameron flick where the script never got past the first draft. So when Grrr, Aaargh (Frank MacGuire), Whinging Son (Rhys Wakefield), Millionaire Jerk (Ioan Gruffudd), Comic Relief (Dan Wylie), Woman (Alice Parkinson) and Expendable Foreigner (Cramer Cain) find themselves trapped underground, you'll be more interested in how they're going to die than in the clunky dialogue. That said, there's some eerily beautiful moments of utter horror to be found. From the ethereal splendour of a vast underwater cave to the pockets of air bubbling like mercury on the rocky ceiling, it's a feast for the eyes even when it leaves the brain starving. Yes, it's clunky. Yes, the cave is surprisingly well-lit and yes, saying "what could possibly go wrong" before abseiling into the bowels of the earth is utterly stupid. But it's pretty, has a couple of cool death scenes (the "hair" moment is horrible) and it's much, much shorter than The Abyss.

Theo Robertson SANCTUM was shot in 3-D and produced by James Cameron and yet I had no recollection of seeing any of its trailers or of it hitting the cinema in Britain which leads me to conclude it was something of a flop , It's easy to see how difficult it was to market to a potential audience . As the true life tale of 127 HOURS showed man against the elements type movie shows that this type of adventure probably doesn't lend itself to cinema hence we got a highly dubious and apocryphal tale of someone in the audience fainting during a pivotal scene . There's also the aspect that this type of story would make a subject for a good documentary on The Discovery Channel As it stands SANCTUM is fiction so there's plenty of room for what's known as artistic license . Here the production misses the opportunity to do so . For the first third we're introduced to the characters and what an unlovable bunch they are , almost all exclusively arrogant control freaks and one or two who border on violent sociopath material , just the sort of people you would happily go pot holing with . Especially if something nasty happens down there and you have to entrust your life to them . Sure enough .....I'll say one thing in its favour and that is I didn't have high hope for the film in the first half hour but when the mayhem started it does start taking off in a rather brutal and nihilistic way . You have to overlook one or two things such the cinematic convention that a subterranean cave always has enough light in order for the audience to see what's happening and of course no chance of a rescue party ever being sent out . But despite these flaws which are very common in these type of movies SANCTUM is a tough tale where people have to battle amongst themselves along with nature in order to survive