I watched it yesterday and this is in fact an excellent movie. No dull moment. Well directed, good acting/costumes/military equipment/special effects with plenty of action: sword fights, battle scenes with artillery and cavalry charges (Polish winged hussars).
It's a little graphic at times (PG13) but very entertaining overall due to the humor/passion display by the characters. I was even able to brush up my Russian (learned this language for 7 years). I would recommend this one to anyone who is looking to learn more about tormented 17th Century Russian history that led to the birth of the Romanov dinasty...