Using AI upscaling and AI interpolation, the cinematics are now much sharper while preserving the artist's intent of the originals. The biggest upgrade in my opinion is converting them to 60FPS. Normally interpolation produces sub-par results, but AI-based interpolation is vastly superior to the point where it almost looks native. I've uploaded 1080P, 1440P, and 4K versions of the cutscenes, so you can just pick what resolution you play at. I'm assuming it would downscale the 4K ones regardless, but wanted to offer lower download size ones. I've also uploaded the original 720P movies in case you need to redownload them without redownloading the whole game.

Installation is an absolute snap.
Simply use WinRAR or a similar program to unpack both archives (Game Cinematics and Intro/EA_BioWare Logos) once it's finished downloading. And you then paste them in these two file directories: 

GOG Games
For the main game cinematics: C:/GOG Games/Dragon Age Origins/modules/single player/data/movies/
For the intro and EA_BioWare Logos: C:/GOG Games/Dragon Age Origins/packages/core/data/movies/

Steam
For the main game cinematics: C:/Program Files (x86)/Steam/steamapps/common/Dragon Age Origins/modules/single player/data/movies/
For the intro and EA_BioWare Logos: C:/Program Files (x86)/Steam/steamapps/common/Dragon Age Origins/packages/core/data/movies/

Origin
For the main game cinematics: C:/Program Files (x86)/Origin Games/Dragon Age Origins/modules/single player/data/movies/
For the intro and EA_BioWare Logos: C:/Program Files (x86)/Origin Games/Dragon Age Origins/packages/core/data/movies/

Enjoy!