I do not think it was cancelled, I believe it was just produced as a mini series to fill the time that was left when filming for the original Spartacus was delayed due to the illness of the original Spartacus
Think Hero TV - 2009 Spartacus Gods of the Arena Preview was released on: USA: 10 January 2011
Spartacus Gods of the Arena - 2011 Beneath the Mask 1-4 is rated/received certificates of: Netherlands:16 USA:TV-MA
Gladiators
Spartacus kills his best friend to spare him of the agonies of crucifixion. This happened after the Spartacus slave army was defeated and Spartacus and his friend were captured.
Kirk Douglas played the title role in 1960 film , directed by Stanley Kubrick. It also stars Laurence Olivier, Tony Curtis, Herbert Lom and Peter Ustinov.
Blood and Sand Gods of the Arena Vengeance
Think Hero TV - 2009 Spartacus Gods of the Arena Preview was released on: USA: 10 January 2011
Spartacus Gods of the Arena - 2011 Paterfamilias 1-3 is rated/received certificates of: Netherlands:16 USA:TV-MA
Spartacus Gods of the Arena - 2011 Missio 1-2 is rated/received certificates of: Netherlands:16 USA:TV-MA
Spartacus Gods of the Arena - 2011 Reckoning 1-5 is rated/received certificates of: Netherlands:16 USA:TV-MA
Think Hero TV - 2009 Spartacus Gods of the Arena Paterfamilias Review was released on: USA: 8 February 2011
Spartacus Gods of the Arena - 2011 The Bitter End 1-6 is rated/received certificates of: Netherlands:16 USA:TV-MA
Spartacus Gods of the Arena - 2011 Past Transgressions 1-1 is rated/received certificates of: Netherlands:16 USA:TV-MA
Spartacus Gods of the Arena - 2011 Beneath the Mask 1-4 is rated/received certificates of: Netherlands:16 USA:TV-MA
Dustin Clare who playe Gannicus On Spartacus: Gods of the Arena
Ashur from Spartacus Blood and Sand and Gods of the Arena. He is Syrian
Think Hero TV - 2009 Spartacus Gods of the Arena Beneath the Mask Review was released on: USA: 13 February 2011