Is the movie of In Cold Blood similar enough to the book?

While the 1967
film of the same title that stars Robert Blake as Perry Smith faithfully chronicles the
journalisticof , who was very involved in the making of this movie, there is no substitute for
having read the book which provides insights into characters and much more detail.  However,
since the limitation of time is a factor, reading the study guides on themes, character
analysis, as well as the summary will certainly help.

Capote's book is
divided into four parts, which are extensively detailed:

1. The
   character of the Clutter family, their social status and activities during the last day prior to
   the murders 
2. The planning and plotting of the killers


3. The detailed investigations of the Kansas Bureau of Investigation (KBI)
   agents
4. The capture, trial, and execution of the murderers.

So, you may wish to examine each section, especially part II in which a
psychological study is made of Perry by Capote, who explores the theme of "Nature vs
Nurture."  Capote become sympathetic to Perry Smith, whose history is one of physical abuse
and neglect and, thus, raises the question if Smith should be held completely responsible for
his actions when he is a product of his environment.

P.S. There is really
never any substitute for having read the main literary work.