This thesis analyses and compares colour and light in the movies Låt den rätte komma in (2008) and Let Me In (2010). Under the analysis have earlier texts about colour and light been used to distinguish and interpret the material. The result of the analysis shows that there is a big difference between the movies. Why there is such a big difference between two adaptation of the same book have been discussed from a neoformalist perspective and through a cognitive approach. The difference between the colour and the lighting in the movies may be because they are made in two different countries for spectators that interpret the content in movies differently.