Pu-239 (film)

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Pu-239
Theatrical release poster
Directed by	Scott Z. Burns
Written by	Scott Z. Burns
Based on	PU-239 and Other Russian Fantasies by Ken Kalfus
Produced by	Charlie Lyons Miranda de Pencier Guy J. Louthan
Starring	Paddy Considine Radha Mitchell Oscar Isaac
Cinematography	Eigil Bryld
Edited by	Tatiana S. Riegel Leo Trombetta
Music by	Abel Korzeniowski
Distributed by	Beacon Pictures HBO Films
Release date	12 September 2006 (2006-09-12) (Toronto International Film Festival)
Running time	97 minutes
Country	United Kingdom
Language	English

Pu-239 is a 2006 British drama film written and directed by Hollywood producer Scott Z. Burns in his feature directorial debut, which was based on the book PU-239 and Other Russian Fantasies written by Ken Kalfus. The film was shown twice at the 2006 Toronto International Film Festival under the title The Half Life of Timofey Berezin before being distributed by HBO Films under its original working title. Pu-239 is the chemical symbol for plutonium-239 (²³⁹Pu), the most readily fissile isotope of the element plutonium.