De 4e eeuw A.D.: Op zijn weg naar Rome loopt Constantine, de zoon van de keizer, in een hinderlaag. Zijn vriend Hadrian raakt ernstig gewond en wordt opgevangen en verzorgd door een groep Christenen. Ondertussen moet Constantine toezien hoe de volgelingen van deze verboden religie worden gemarteld, terwijl hij strijdt voor vrijheid van religie. Hiermee zorgt hij voor spanningen in de senaat, die zijn tegenstander Maxentius gebruikt om een opstand te beginnen...
Nee, helaas is Costantino il grande nog niet beschikbaar op Netflix in Nederland.
| Directing | Lionello De Felice | Director |
| Sound | Mario Nascimbene | Original Music Composer |
| Camera | Massimo Dallamano | Director of Photography |
| Writing | Fulvio Palmieri | Story |
| Writing | Ennio De Concini | Story |
| Writing | Franco Rossetti | Story |
| Writing | Guglielmo Santangelo | Story |
| Writing | Ennio De Concini | Screenplay |
| Writing | Lionello De Felice | Screenplay |
| Writing | Ernesto Guida | Screenplay |
| Writing | Franco Rossetti | Screenplay |
| Writing | Guglielmo Santangelo | Screenplay |
| Writing | Diego Fabbri | Dialogue |
| Sound | Franco Ferrara | Conductor |
| Art | Franco Lolli | Production Design |
| Costume & Make-Up | Giancarlo Bartolini Salimbeni | Costume Design |
| Directing | Paolo Bianchini | First Assistant Director |
| Directing | Umberto Lenzi | First Assistant Director |
| Directing | Maurizio Lucci | First Assistant Director |
| Crew | Franco Fantasia | Master at Arms |
| Costume & Make-Up | Duilio Scarozza | Makeup Artist |
| Costume & Make-Up | Adriana Cassini | Hairstylist |
| Costume & Make-Up | Cesare Rovatti | Assistant Costume Designer |
| Production | Marino Vaccà | Unit Manager |
| Production | Orlando Orsini | Unit Manager |
| Production | Giulio Pappagallo | Production Secretary |
| Production | Mauro Sacripanti | Production Secretary |
| Camera | Cesare Allione | Camera Operator |
| Camera | Sergio D'Offizi | Assistant Camera |
| Camera | Giovanni Bonivento | Assistant Camera |
| Camera | Giovanni Canfarelli Modica | Assistant Camera |
| Sound | Franco Groppioni | Sound |
| Sound | Raffaele Del Monte | Sound |
| Editing | Mario Serandrei | Editor |
| Editing | Gabriele Varriale | Editor |
| Production | Jacopo Comin | Line Producer |
| Production | Ferdinando Felicioni | Production Manager |
