Warhammer 40,000 Astartes is fan film project. Released as mini 1 minute episodes with no planned schedule.
As today there are five episodes released.
0- Astartes - Warhammer 40,000 Fan Film Teaser
https://www.youtube.com/watch?v=pcTZrrtdAUM
1- Astartes - Part One
https://www.youtube.com/watch?v=2bko5GgK5v8
2- Astartes - Part Two
https://www.youtube.com/watch?v=mfGPMJ8A0QY
3- Astartes - Part Three
https://www.youtube.com/watch?v=CMGRa4_UjE4
4- Astartes - Part Four
https://www.youtube.com/watch?v=V2B6de1Geks
5- Astartes - Part Five
https://www.youtube.com/watch?v=eoCcpMW8fSs