Research

• find examples of high key and low key lighting

Low key Lighting

Low key lighting is where the image is highly shadowed and shows little detail to where the lighting is focused. Low key lighting is don in a studio where the light can be manipulated so the light can be bright or dim usually using one hard light on  the model so that the light isn't to dim and soft. The background has to be black so it shows no detail behind the model/object.

High key Lighting

High key lighting is where the selected frame has barely any shadows so that the image shows all light possible without making look too abstract. high key lighting is mainly on a white background but some specialists know how to use this technique outside the studio. light manipulation in this technique doesn't mean a lot as long as there is a few light with soft boxes to light the backdrop and a beauty dish on the models/objects side

Both techniques are usually filtered in Black and White to give more emphasis to the high key and low key. photoshop can also come into editing these pictures as you can edit the levels/curves to make the image lighter or darker.

• This movie poster looks like it hasn't been edited but if you notice around the models hair, it has a slight pink effect and the editor has probably gave slight touch ups to the models face e.g getting rid of blemishes, brightening the eyes to make them stand out etc. Adding the text into the poster isn't hard but finding a unique font is.
  
  
  
  
  
  
  
  This movie poster has obviously been digitally edited so that the image in their mind can be created. the effect with the rose petals gives the impression that a body/person is delicate. Digital media like this can take a long time to make perfect but the results reflect on the time put into. Digital media is a big influence to have when creating images as you can usually create images that can be created using make-up effects or any other type.