I love learning about Vikings, its one of my favorite time periods of history. 
Vikings are cool and there is a lot of mythology around their culture. They are Norse seafarers speaking old Norse language.
Yea there really is.  For example apperantly they never wore horned helmets.  I always found that interesting. 
I guess movies tend to get carried away. They are known to have raided and traded throughout Northern European homelands across wide areas of northern, central, eastern and western Europe, during the late 8th to late 11th centuries.