Did Helen Mirren Appear in the Roughie Western Hot Spur?

On the right, we have a young Helen Mirren in Age of Consent. On the left we have an actress who looks a whole lot like a slightly older Helen Mirren in Hot Spur.

Did famous British actress Helen Mirren appear in the roughie Western "Hot Spur" back in 1969? We think we have photographic evidence that she did (see image above, see article at link for more almost convincing images). But then, we also think robots are stealing our luggage. Still, don't dismiss this theory as the peabrained malarkey it so clearly is, because it's OUR theory and our feelings would really be hurt if you did.