I have not seen this movie. I am excited for a couple reasons. First, it has Willem Dafoe in it. Second, it's about thylacines, and not enough people in the world know about thylacines. I am worried for only one reason. I don't know if they get all the information right. This is a huge problem in the movie industry, they will bend facts to fit their plot, and won't care about the rest of it, or they'll take one example and act like that is the norm for the species.
On that note, let's discuss the thylacine so that everyone knows what's what.
Thylacinus cynocephalus is extinct. People may not think so, but everyone is pretty sure they are, which is a huge disappointment. There are sightings all the time, but no confirmations. I find this to be a horrible loss. Thylacines are probably one of the most awesome mammals this earth has produced. These things are so cool, Chuck Norris pales in comparison.
Thylacines are carnivorous marsupials. Historically they occupied Tasmania, Australia, and Papua New Guinea, and were quite wide spread. They are roughly the size of an adult German Shepard dog, but the limb-length ratio is different. Dogs have long legs in proportion to their trunk [spinal column minus tail], thylacine legs are shorter, suggesting that they stalk their prey. They have yellow-brown or grey-brown fur, with 15-20 black/dark brow stripes from the back of the shoulder blades to just before the tail. The tail itself is not abruptly separated from the body, but tapers, like the tail of a kangaroo. They have 46 teeth adapted for slicing and crushing. They could open their jaw ridiculously wide, lowering their bottom jaw to an angle of (SOME SAY) almost 180 degrees. This, however, would be anatomically impossible for them to do without dislocating the mandible.
The female marsupial had a back-opening pouch, unlike other marsupials, namely the kangaroo, who has a front-opening pouch. Estimated life span in the wild is 8-12 years. They can jump 6-8 feet. Their preferred habitat is unknown, as well as their hunting methods and preferred prey. Blood samples suggest that they are closely related to dasyurids [read: Tasmanian Devil, but other things too].
Please look up more about the thylacine, the more you read, the more you'll be pissed that they're extinct and we can't go to a zoo and look at them, or tag one and see if they actually do hunt in packs.
You can do more research on your own, there's about a million websites for the thylacine. Here's a list of papers written about them, too:
ABC Video (1994). Clash of The Carnivores. Natural History Unit.
Guiler, E. (1985). Thylacine: The Tragedy of The Tasmanian Tiger. Oxford Uni. Press.
Guiler, E. & Godard, P. (1998). Tasmanian Tiger: A lesson to be learnt. Abrolhos Publishing.
Park, A. (1986). A Tasmanian Tiger Extinct or Merely Elusive. Aust Geographic. Vol. 1 No 3.
Smith, S. J. (1980). The Tasmanian Tiger. NPWS, Tas.