The Death Note live action made Light seem like a girl. It also felt like "Oh no looks like Light doesn't seem to have a motive, let's kill his mother."
It was pretty boring, and they even changed Misa's name and entire character really.
Yes, although I personally recommend That Chaos Site or a different source before That ISO site.. You should use an adblocker and dummy account though.
Your question has been answered in one of the first replies. :P
As a member has already said. This method is the easiest one available. I recommend TWloader.