This movie was actually adapted from a NOVEL published in 2009

Rating: Null/10 (12 May 2018)

Any viewer or reviewer thought this film was adapted from William Craig's "Enemy at The Gates" was probably wrong, because it was actually adapted from the novel, "War of The Rats", written and published by David. L. Robbins in 2009.
I don't know if Robbins had referred to some similar historical background resources as Craig's studied WWII eastern front war between the Nazi Germany and the Soviet Russia, but Robbins' NOVEL is obviously and definitely more dramatic and interesting than Craig's NON-FICTION, since writing NOVEL didn't have to be strictly correct with the history, everything could be widely borrowed from any inspirational anecdote in a history or hearsay by the novelist and then developed by his own pure imagination to process it into a FICTION, and all of it was based on the free imagination of the novelist, while a NON-FICTION on the contrary, must be exactly written like filing a documentary, a long article written by the author after his thorough study of the history with all of the existed materials and findings of tangible records in archives. So a non-fiction author in some way is just a collector who assemble, combine, edit and re-arrange all the materials into a new form of record, a updated version of the history with his own explanations and opinions into a new article or a book.
Therefore, if you watch this film from the above fundamental viewpoint, the dramatized storyline, scenarios, plots, twists, even the flaws whatever might be existed, will not and should not mistakenly judged from a must-be-100%-correct in accordance with the exact what-really-happened historical records.
If a movie genre itself as a drama, a thriller, an action war/battle story based on a NOVEL, you, as a viewer, should not and must not criticize it and treat it as a DOCUMENTARY film, because it got nothing to do with the exact records of the history, it's dramatized by the free imagination of the novelist. Same as when you watch a movie played by some of the popular male or female actors, and you watch them as they are the actors you are familiar with instead of the roles they have transformed and played as they should be, then you are just a pathetic movie viewer, because you never could allow yourself to be smoothly, unconsciously and willingly to be merged into a materialized MOVIE with dramatized characters but could only so consciously separating yourself outside of a virtual MOVIE, still be yourself and those actors working in Hollywood movie industries. It only shows how pathetic you are as a movie viewer since you could never distinguish a virtual mirage from the reality, still name all the roles played by WHO's WHO in Hollywood.
So based on all of the above-mentioned premises, those who claimed this film an insult to what-really-happened in history, to reviewer who even claimed he's with the genuine Russian racial background and condemned this film so incorrect or whatsoever, you were obviously either aboard the wrong ship or never got on the train. Read the novel first, or watch the film first then, if you find it interesting, order the novel by David L. Robbins from amazon.com to have another roller-coaster ride in the dramatized literary world. : )
There are several fantastic early Soviet Russian movies and some newer ones you should check them out:
The Forty-first (1956)
Ivanovo Detstvo (1962)
Stalingrad (2013)
Bitva Za Sevastopol(Lady Death) 2015