Visible crew/equipment: During the chariot race, just as Judah (stunt double) flips over in his chariot in the wide shot, a low angle camera is visible on the track under a canopy, at the right side of the screen.
Factual error: Captain Scott is sometimes seen with a Mk VI Webley, a historical anachronism as these date from 1915 onwards, whilst the film is set in 1905. This is also a continuity error as sometimes (particularly later in the film when he is fighting van Layden on the train roof) he now carries a much more period-correct Webley (MK V or earlier).
Continuity mistake: Frederick picks up a bottle of champagne out of the ice bucket and shakes it a little. As he does this the foil and wire are still on top. He turns and aims the bottle at his wife, then tips it back and the foil has vanished as he now just removes the wire and cork.