I just watched the Death Note movie on Netflix, and the ending was horrible. They made Light so angsty, they also just completely changed Light yagami into Light Turner, and Misa Amane into Mia Sutton, and Sochiro Yagami into James Turner. They turned Ryuk into the Major Antagonist, and they turned L. Lawliet into some crazy, gun-wielding, psychedelic psycho. The ending was bad and didn't make an ounce of sense, they for some reason killed Watari, (probably just to fuel the craziness of L)
They also Made L. Lawliet just give away his identity what seems like any chance he got. Like, he had discretion about his identity in the beginning, but in the end he was running around without any face cover, with a gun, trying to capture Light
Mia was way more of a psycho than the OG Misa Amane, and she actually cared about the cause, (Which I didn't like) Unlike in the show, she was only being Kira 2 because she wanted the attention of Light, Kira 1
Light also never cared about Misa, he was only dating her for his benefit, where as in the movie, Light and Mia had a real relationship. They totally skipped the part about Misa , or Mia, having a shinigami, Rem.
Light was kind of a pushover when It came to the death note. Ryuk was my second favorite in the show, and he was such a pain in the movie. They were spewing some nonsense about Ryuk wanting to give the book to someone else, even though he accidentally dropped it from his realm, and was just waiting for Light to be done so he could go back up and chill.