Facehunch before enlarging
Start with the image you have and look for the creator's page, a publisher or an authorised asset library. Compare the composition carefully; another frame from the same shoot is not necessarily the same picture.
Check the candidate file
- Open the source page and review its attribution.
- Use its normal download options where permitted.
- Compare actual dimensions and visible detail.
- Check rights before reusing the larger file.
A wallpaper site may offer a numerically larger image that was simply upscaled. More pixels alone do not establish better evidence or an earlier source.
Keep generated detail separate
If you use an upscaler for presentation, label the output as an edited derivative and keep the original. Do not use invented texture, text or facial features to support a source claim. When the authentic larger version cannot be found, acknowledge the resolution limit rather than presenting enhancement as recovery.
Continue with tracing an original source.