Change in time period

We have chosen to change the time/genre period of the film from 'Film Noir' to 70's/80's period. this is because e have found that making the scene and set that period will be easier for us being in the 20's, meaning pre-war costumes may not be available. music from that time period may not be appropriate. where as the 70's/80's period can be easy to produce a scene, we can use disco lighting which will be easily available. Also we have found the perfect genre of music from this time period, Jazz Fusion.