I love this movie. It isn't perfect, but it is original, a breath of fresh air amidst all of the mediocre and stale films that have been covering Blockbuster's shelves lately. Kiss Kiss, Bang Bang is a great dark comedy/murder mystery. It is fast paced and the dialogue is clever and snappy. The chemistry between Val Kilmer and Robert Downey, Jr. is fantastic, they are great together and really play off of one another. I also enjoy Downey's narration in this film, the way the narration is presented added a nice touch to the already off-beat film.
My only complaint is that when it is explained how the two murders are connected, I ended up feeling a little jipped, I think the writers could have come up with a much better twist and a more interesting ending to the film. But that minor dissapointment certainly didn't change my opinion of the film. I thought Kiss Kiss, Bang Bang was entertaining and I enjoyed its unique and the artistic execution.