Justice League: The Flashpoint Paradox - resets timelines and combines them into one and
Justice League: War - is the new beginning to a new timeline (animated films based on The New 52 continuity).
Else World Movies
-Batman: Assault on Arkham
-Justice League: Gods and Monster
-Batman: The Killing Joke
-Batman Gotham By Gaslight
CW Seeds Constantine: City of Demons, dose not follow Constantine from Arrowverse. Instead it is the Constantine from JL Dark movie. But maybe later they will connect it to Arrowverse somehow.
SMALL LIST OF DC MOVIES
DC animated stand-alone movies don't share continuity with each other or other movies.
Movie's other than those included in the DC Animated Movie Universe Series and the Lego series.
DC Animated universe
Content set on DC's Earth-TGO
Content set on DC's Earth-TT
DC Animation Movies
by ZephyrDavid