"Producers, for example, are involved in every phase [pre-production, production, and post-production], from beginning to end. These workers look for ideas that they believe can be turned into lucrative film projects or television shows. They may see many films, read hundreds of manuscripts, and maintain numerous contacts with literary agents and publishers. Producers are also responsible for all of the financial aspects of a film, including finding financing for its production. The producer works closely with the director on the selection of the script, the principal members of the cast, and the filming locations, because these decisions greatly affect the cost of a film. Once financing is obtained, the producer works out a detailed budget and sees to it that the production costs stay within that budget. In a large production, the producer also works closely with production managers, who are in charge of crews, travel, casting, and equipment. For television shows, much of this process requires especially tight recording deadlines." Source citation: Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2006-07 Edition, Actors, Producers, and Directors, on the Internet at http://www.bls.gov/oco/ocos093.htm

In addition to the above answer, I urge anyone who is interested in a career as a Producer to read The Movie Producer: A Handbook for Producing and Picture-Making, by Paul Lazarus # ISBN-10: 0064637247 # ISBN-13: 978-0064637244 It is, by far, one of the best books I've read for any aspiring movie Producer. Brian Dzyak Cameraman/Author IATSE Local 600, SOC http://www.whatireallywanttodo.com