Completion bonds are often standard pre-project material for any large construction project or complex project involving large sums of money and/or multiple investors. They are a longstanding tradition in the entertainment business, where many variables can come into play which may affect the completion of a large movie project.
A third party guarantor will assess the risk to the projects completion and collect a premium for insuring the particular risks to a given project being completed on time, and on budget. Investors become much more likely to get involved, knowing that the project will be completed enough to be sold so they can recoup their investment.
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He needs a completion bond which guarantees the banks that it will pay all cost overruns necessary to finish the movie.
Англо-русский строительный словарь. — М.: Русский Язык.С.Н.Корчемкина, С.К.Кашкина, С.В.Курбатова.1995.