Spartacus (1960)

Continuity mistake: just before Crassus has Spartacus crucified,he tells him the fate of his wife and son. A camera closeup shows a change in Kirk Douglas's hairstyle.

Continuity mistake: The man holding the parasol at the start: In the close up shots,he is right behind Batiatus, and in an overhead one he is further back.

Continuity mistake: Spartacus and Antoninus are kept to the very end as the slave army are being crucified. They both somehow manage to remain clean shaven despite walking for days on end.