How to import movies into Photos using Applescript

I am trying to import a number of movies (H.264, mov) into Photos.

Originally, I wanted to do it in Automator, since the movies are created with an Automator workflow.

However, it seems that the action "Import Files into Photos" does not import movies, only images.

So I thought I could do it using an Applescript in Automator.

However, I seem to fail to do that, too.

Here is a minimal example, showing what I am trying to do:

The Applescript is this:

on run {input, parameters} tell application "Photos" delay 2 repeat with f in input with timeout of 60 seconds import f skip check duplicates yes end timeout end repeat end tell return input end run

The image file does exist.

The error message I get from Photos is "Unable to get metadata":

When I try it with the movie file, I get a different error message: "Non of these files can be imported ..."

This makes me suspect that the import command does not allow to import movie files into Photos.

Is there any other way I can automatically import (valid) movie files into Photos?

Any hints and tips will be highly appreciated.

Best regards,

Gabriel.