
Day Lewis was phenomenal. Everything I have always pictured Lincoln to be, Day-Lewis portrayed it perfectly. His mannerism's.. His sense of humor.. His unique ability to be very stern in situations, yet still keeping that gentle kindness. I can see how it would be a little difficult for non-history buffs to follow. The dialogue is very fast at times, and of course the period language. But if you have followed that time period (as I have for most of my adult life) you shouldn't have a problem.
Go see it so you can think back "I'm glad I saw that movie in the theater". Five stars from me.