Hey, I cried in "Saving Private Ryan", "It's a wonderful life", "Life is beautiful", "Why did I get married?" and "Fireproof". The later two was because of the timing of going through a divorce. Band of Brothers was excellent. The main Lt (Winters) was a man among men.

I just think that maybe the sentimental tear jerk moments were lacking - maybe it was the acting or not going deep enough with emotions. The visual effects kicked ass enough that I can say Avatar to be the greatest movie I have ever experienced.