Hi!
Would be nice to make a collection of Interrail documentaries (and also interesting news reports etc.) here.
I will start with:
NDR - With Interrail through Eastern Europe (German)
SRF: Documentary consisting of 3 parts “By Interrail through Europe” (German)
https://www.srf.ch/play/tv/dok/video/interrail---mit-dem-zug-durch-europa--freiheit-auf-schienen-13?urn=urn:srf:video:65252cf7-6133-4c0c-8743-2391873fdfc6
https://www.srf.ch/play/tv/dok/video/interrail---freiheit-auf-schienen--mit-dem-zug-durch-europa-23?urn=urn:srf:video:24f199cd-f969-4e41-ba2b-f17f394553cc
Spiegel/ARTE: Adventure Interrail (German, maybe there’s also a French version available?)
NDR - Interrail - The best trip of my life (German)
Feel free to add more!