Automatic brightness control very very annoying, it dims down almost random, so you have to set it couple times...
To disable improper automatic brightness control, uncheck this:
To control brightness manually from 0% to 100% , install xbacklight
$ sudo apt-get install xbacklight
Don't know how to overwrite functional keys for brightness, so I made two new shortcuts for brightness control, with commands:
$ xbacklight -inc 5
$ xbacklight -dec 5
For non 60 fps videos, mplayer works pretty well with this config:
$ cat ~/.mplayer/config
# Write your default config options here!