The film was released in March 2010 by Vertigo Films and IFC. He is also Executive Producer of Lionsgate's Jack Falls, the final installment of the first ever British film trilogy, particularly reminiscent of the Robert Rodriguez classic Sin City; and King Kennedy, a feature-length drama/thriller set in the 1960s made entirely from archive material. The film stars some of the most prominent characters from 1960's America, including US President John F. Kennedy, Robert F. Kennedy, the civil rights movement leader Martin Luther King, convicted assassins Lee Harvey Oswald and Sirhan Sirhan and the film world's brightest icons of that time Marilyn Monroe and Frank Sinatra. The plot line revolves around the concepts of truth and freedom, but pursues further towards deception, intrigue, conspiracy and murder, and features some of the most memorable moments in 1960's America, including Marilyn Monroe's world-famous "Happy Birthday, Mr. President" at Madison Square Garden and Martin Luther King's "I Have A Dream" speech on the steps of the Lincoln Memorial in which he called for racial equality and an end to discrimination. The film is designed primarily to remind, focusing on the characters and events that build up to the assassinations of John F. Kennedy, Robert F. Kennedy and Martin Luther King as their apparent determination to shy away from war, discrimination and hatred became ever more publicized. In addition to his producing work, Valentine has served as a senior consultant at Mayfair-based investment and corporate advisory firm Buchler Rothschild Investments, providing corporate strategy, fundraising and business advisory services to clients in the media arena. Valentine is also a partner at corporate finance and commodities trading organization HSW Finance, providing financial instruments and fundraising services to clients in the international commodities trading industries. He is the first cousin of George Roy Hill, Academy Award-winning director of Butch Cassidy and the Sundance Kid and The Sting and the grandson of Sir Edmund Villiers Minshull Stockdale, 1st Baronet (Lord Mayor of the City of London, 1959) and The Hon. Louise Fermor-Hesketh. On 26 April 2008 he married Martha Judith Torres Chávez in London. His son Gabriel Angelo Dante Stockdale was born in London on 16 May 2008.