Yes,and oddly enough the Poirot episode was only made in 2008!
However,I have noticed that people in Poirot (given when it is set) tend to look older,mainly due to hairstyles,clothing,and the general way they act and carry themselves, and the way that they interact with others.
Many of the young ladies in Poirot who are meant to be in their twenties,dress as if they were 40!
I am old enough (sadly) to remember my Mother looking 50 when she was only 20! LOL