I feel this was an "interesting" film in neither a good or a bad way. There was something about this budget film that I found interesting and actually wanting to keep me watching it until the end. But to be honest I can't quite work out exactly what it is I liked about it that kept me gripped. Maybe more a film that had a number of elements in just part that I liked than any single element of the film as such.
I didn't think the acting was to bad compared to what others have said. Sure, not great but certainly a mix of characters that I wish the film would have elaborated about each a bit more. Effects were odd at times yet decent at others.
Story was fairly ropey with what I feel was a lack of missing elements such as to the animals creation, the research & researchers and destination of the plane background etc. As well as a few unrealistic situations.
A respectable 5/10 for me as 1 of them films I rather enjoyed yet on paper possibly shouldn't have.