Differences Between Manga and Film of Deathnote3

All events and characters in the manga after the Yotsuba arc are omitted.
Instead of the Yotsuba Group executive Kyosuke Higuchi, the Death Note is passed to the anchorwoman Kiyomi Takada, who uses it to kill her predecessor and gain "exclusive" scoops (her use of the Death Note still fulfills the same purpose in Light's plan of deflecting suspicion from himself and her capture and subsequent disposal of by Light are almost the same as Higuchi's death in the manga).
A movie-exclusive character, Shiori Akino (秋野 詩織, Akino Shiori?) is introduced as Light's girlfriend. Her death comes as part of the final confrontation between Light and the detective Misora at the art museum at the end of the first film. Misora commits suicide following her accidental shooting of Shiori (both deaths being set by Light beforehand in the Death Note), rather than the single suicide assigned by Light in the manga after she stumbles across information that threatens to unmask him as Kira.
Light learns Misora's name from a wedding registry, rather than from her own admission as in the manga
The Kira Investigative Team relies on one hotel headquarters, rather than the system of different locations employed by L in the manga as a means of secrecy.
Sanami (佐波, Sanami), another character exclusive to the film, is the only female member in the Kira Investigation Team, as opposed to the all-male team in the manga and anime.
While Mogi survived in the entire course of the manga and anime series, he was killed off in the film (with his death in the fashion of another member of the investigation team in the manga and anime, Ukita)
In the climax of the second film, L writes his own name in the Death Note, overriding the time Rem writes in hers by twenty days. L subsequently outlives Light. Soichiro Yagami also survives the events of the movie.