Hi @sekisota0213!
Currently the only files we are able to import into UEFN are:
3D Models
- FBX file format
- OBJ
- gITF
- GLB
Textures
- JPG
- PNG
- JPEG
- BMP
- DDS
- EXR
- HDR
- PCX
- PSD
- TGA
- TIF
- TIFF
Audio
- AIF
- FLAC
- OGG
- WAV
Epic
- .island
- .upack
Other
- CSV
- JSON
Source:
So I do not believe we are able to import .mp4 or .mov like you would in UE.
Would be so cool to see this option in the future!
Hope this helps!