Upon Arriving in Hollywood, Koules was introduced to former Los Angeles Times reporter, Dale Pollock, and the two formed Peak Productions soon after. Together, they produced films like Mrs. Winterbourne and Set It Off. The early success of Peak Productions led Koules to a job as the Senior Vice President of Production at Paramount Pictures. In 1998, Koules and Mark Burg founded Evolution Entertainment. They produced the Denzel Washington-led thriller film, John Q which was released in 2002. In 2001, Koules purchased the Helena Bighorns, a Junior A hockey team, and the Helena Ice Arena. In 2003, Koules and Mark Burg saw a seven-minute teaser of a film written by Australian screenwriters, Leigh Whannell and James Wan. Koules and Burg were "stunned" and they agreed to produce what would later become the original Saw film. They used $1 million out of pocket for funding and shot the film in 18 days. They also created a subsidiary of Evolution Entertainment called Twisted Pictures to produce the film. Saw was released in 2004 and was followed up by a sequel in 2005. By 2007, the Saw franchise hit $420 million at the box office. By 2011, the series had made roughly $870 million at the box office. Evolution Entertainment was also responsible for the production of Two and a Half Men starting in 2003. In August 2007, Koules started his pursuit to purchase the Tampa Bay Lightning from Palace Sports and Entertainment. In February 2008, OK Hockey LLC, a group led by Koules, agreed to purchase the team. The deal offered by the 8-person ownership group was approved by the NHL in June 2008 for a price of $206 million. By February 2010, Jeffrey Vinik, a minority owner in the Boston Red Sox, had agreed to purchase the Lightning for $160 million. The sale was unanimously approved by the NHL Board of Governors the following month. In August 2011, Koules expressed interest in one day owning an NHL franchise again. In June 2011, Koules sold his ownership in Evolution Entertainment, but continues to own and oversee the Saw franchise and Two and a Half Men.
Personal life
Koules married talent agent, Risa Shapiro, in 1994. They had one son, Miles, in that same year. Miles Koules is currently a professional ice hockey player, playing for the Cleveland Monsters of the AHL. Koules and Shapiro separated in 2005 and eventually divorced in 2007. In 2008, Koules married Shereen Arazm, a businesswoman and restaurateur. They met by happenstance on a flight from Toronto to Los Angeles where Koules was filming Saw II and where Arazm is originally from. The pair have two daughters together, Sam and Neve.