The Major Thing That Kept Me From Liking It
I did like the movie but all throughout one thing kept nagging me.
His children had died before him. He finds out his wife died and goes *beep* looking for her but his kids he doesn't ask about at all. They pretty much have to say, "Here I am!" Before he even things of them. And SPOILER His son isn't revealed until almost the end.
That really irritated me and made me not like Robin Williams' character at all.