I got inspired by Wulff Den's video of him putting Tenet on a few GBA Video carts: https://youtu.be/S4od1AdB8e4. So, I am currently in the process of putting the entirety of the original EVA TV show (in the ADV English dub) onto 26 GBA ROMs for use on flash carts such as the EZ Flash Omega Definitive Edition and the Everdrive GBA. I am not going to distribute them (at least for now) due to fear of copyright. Heck! I tried uploading this to YouTube but I got struck with copyright! I recorded this on the VisualBoyAdvance-M emulator: https://vba-m.com/
I might just do the same with the original duology of movies (Death(true)^(2) and The End of Evangelion) but that would force me to cut up those movies into 30 minute sections so they would fit on a GBA cart in good quality.
The emulators are very easy to find.
VBA-M for Gameboy, GBC and GBA.
Unfortunately linking the rom files here is against the rules. If you want them you can check out /r/roms.