Immerman started his career at American International Pictures, where he rose to the position of VP in charge of business affairs and later became a production executive. He then joined 20th Century Fox in 1972, where he continued to make significant contributions to the film industry.

His heroism extended beyond film production, as he was the executive in charge of the original Broadway production of The Wiz and had executive producer credits on various films, including Take This Job and Shove It, Southern Comfort, and Hysterical.

In addition to his work with major studios, Immerman's role as chairman of the board and president of Cinema Group, Inc. marked a significant milestone in the industry. The company's ability to raise start-up money from Wall Street through an initial private placement and subsequent public offering paved the way for future financing models.

Immerman's dedication to the industry went beyond his professional achievements. As a member of the Academy of Motion Picture Arts and Sciences, he actively contributed to the recognition and celebration of excellence in filmmaking.

His heroism and commitment to justice in the film industry will be remembered for years to come. Immerman's passing is mourned by his wife, Ginger, his children, Scott, Eric, and Lara Myrene, and the entire film community.

To honor Immerman's life and contributions to the industry, a memorial event, billed as a 'Going Away Party,' will be held to celebrate his heroism and the magic he brought to the world of cinema.