I trying to find all files ending with :

* ancestors-the-humankind-odyssey-trailers-**720-1262**.mp4
* high-tech-divers-**1080-1234**.mp4
* amazon-divers-**720-1323**.mp4

and rename this files like this :

* **720-1262**.mp4
* **1080-1234**.mp4
* **720-1323**.mp4

I use regex but nothing, why ? what's wrong pls ?

```
find . -regex '^.*-(([0-9])*-([0-9])*)\.mp4'

```

Only one directory and these files, no subdirectories. approximately 300 files .mp4