Using Black and White

For my opening sequence I decided to use black and white. This makes it seem as if it is filmed in the 1940's and also helps to emphasise that the footage is from the past. There are two clips in the sequence as these are in the present day from the girl trying to find out what happened to her mother. The black and white effect makes it seem more artistic and more appropriate to the era.
However, films such as Changeling which is set in the 1920's is in full colour. I am yet undecided whether to keep mine in black and white or to have it into full colour. This is because I wanted to give my film a fairytale feeling to it and made the main character, Marie wear a red dress with red lipstick as the film is set in the woods and she encounters a woodchopper which is much similar to Little Red Riding Hood.
My plan is to do two different rough cuts, one in colour and one in black and white to get some feedback on which one looks better.