Ok guys, here's the truth. If you weren't born in USSR and didn't grow watching this move - you won't understand the whole depth of this movie. This is cultural thing, it's hard to comprehend. The movie was filmed in 1973. The original version was black and white. The movie is based on the true story with some changes. So if you look for good quality picture, superior sound, real WWII planes - this move is not for you. Don't waste your time. This move is about soviet people, solders and officers, their life and the ultimate sacrifice.