Kiss Kiss bang bang was a film directed By Shane Black in 2005, The film includes stars such as Robert Downey JR, Val Kilmer and Michelle monaghan.
Robert Downey plays a theif who is mistaken for a Actor, he agrees to play along with the role but by doing this hes taken to Hollywood and becomes involved with some of the biggest parties around full of other movie stars and "Wannabe Actors".
This party is where Robert Downey juniors character Harry Lockhart meets Val Kilmers character Gay perry, From this moment on both the characters get into a twisting mystery/crime plot.
Michelle Monaghan plays Robert downey Jr's old school crush who is trying to make it into the world of acting. This is how the two characters find each other becuase Michelles character attends the Hollywood party.
The plott is incredibly confusing however if you try to focus too much on the plott you will miss the amazing performances from the characters within the film.

This film has similar ideas to that of the older film "Sunset Boulavard" directed by Wilder 1950.
This film is also about actors and "Has been actors" who are now out of the picture of Hollywood, Who are trying to make it back into the world of acting.
Both these films contain plotts in which the main characters get shot at, and in some cases for Sunset Boulavard the main character dies.
Another element that both the films have in common is that they are both narrated and told by the main characters point of view.