Step In Time: Mary Poppins, where are you?

It's one of the most intimately guarded secrets of my life. Since the age of around 6, I have had a crush on Julie Andrews.

There, I've said it. And I like Mary Poppins too.

But try as I might, getting my head around Dick Van Dyke's accent is impossible. Which is really unfortunate, because his athleticism in the chimney sweep dance scene is incredible.