Film would have benefited with more mystery and faith
I enjoyed this film but I think it was a missed opportunity. Through the film we have a Roman officer investigating the 'rising' of Jesus. And about half way through the movie he actually sees Jesus and later hangs out with Jesus and the disciples and even witnesses Jesus performing miracles.
I think it might have been more powerful if Clavius never clearly saw Jesus directly but only obliquely and through second hand reports. He could have met disciples and others who witnessed Jesus risen and his miracles and through them he could have become a believer. At most you could have the fishing scene where some figure shouts out to cast again but you never see for sure that the figure is Jesus, for example.
It could have been more powerful if Clavius became a believer through faith in hearing of the words and deeds of Jesus and not simply meeting someone who rose from the dead. You don't need much faith to believe that. I think that would have made for a more satisfying emotional and spiritual journey for the film.