Directors commentary...and don't they like to comment...

I have been listening to the Directors commentaries for several opening sequences of films...and from this I have learnt more about production of the films.
Here are some examples of comments from Directors about their films, which game me more insight into film making.

Mrs Henderson Presents
Director Stephen Frears talking. Quotes I collected from him about the opening...
"I went around for a year; asking if this was the kind of film which had an overture on it. When I was young films used to have overtures. After a year I realised the answer was yes. But of course if you have an overture, you have to have something on the screen, which I hadn’t allowed for in what I was shooting. So then we designed the sequence, and a wonderful Italian boy, a lot of young people made this sequence. Which always reminds me of March brothers films. Films made by Paramount in the 30’s."

"The reason why I was asking the question about the overture, was that you could either say from the beginning it was the kind of musical, or of course, you could have done it as a drama which then half way through the musical bit started as a surprise."

"Oh I like this shot, it’s like, the opening of ‘Unforgiven’ a Clint Eastwood film."

"The reason it says inspired by true events was, there was always an argument about, whether the fact it was a real story was important or not. I of course in choosing to have those credits wanted the film to take place in a sort of place where musicals take place, which of course is a complete contradiction to real life."