Batman in trash bin

[Andos]

I just got my Fit-PC2 Linux with Wifi and auto-on and I noticed something at the first boot of Linux:
It had the file "The.Dark.Knight.Prologue.2008.720p.Blu-ray.mkv" in the trash bin.
(it's a trailer/promo of the movie, not the full one)

Does this mean that anyone used my Fit-PC2 before I got it?
I wouldn't be comfortable using a system anyone had their hands on before me as I don't know what state it is in then.
I got it from the danish supplier listed on fit-pc2's website: http://www.linuxshoppen.dk

Or did anyone else notice it being there as some kind of demo for the Fit-PC2 to show that it can handle HD video? It ran fluently btw

[irads]

This is one of the videos used by compulab for testing. The unit is not used.

[Andos]

Thanks for the answer
I found the other sample videos in the home/videos folder as well. Nice to put them there as examples of the power of the tiny beast