Your film is like your children. You might want a child with certain qualities, but you are never going to get the exact specification right. The film has a privilege to live its own life and develop its own character. To suppress this is dangerous. It is an approach that works the other way too: sometimes the footage has amazing qualities that you did not expect

Film is, to me, just unimportant. But people are very important.

Without art, a film is pure wastage of time and resources.

Filmmaking is not the work of the weak-minded. It may not be rocket science, but it requires ten times more strength of the mind than that.