The son of Jewish immigrants who settled in Iowa shortly after the turn of the century, Zimring moved to Los Angeles in the 1930s, and wrote for such mystery and drama radio series as Hollywood Star Playhouse and Murder By Experts under the pen name of Maurice Zimm.
[1] In 1955, Zimm worked on an early draft of the adaptation of the Tom Lea western novel, The Wonderful Country, although he would receive no credit when the film was eventually released in 1959.
Later that year, Zimm received his first full screenplay credit for the Biblical epic The Prodigal starring Lana Turner.
Zimm also wrote for television, contributing an episode to the mystery anthology series The Web and serving as a staff writer for Perry Mason.
On June 19, 2009, the Palace Theater in Hilo celebrated Zimring's one-hundredth birthday by showing Jeopardy, Creature from the Black Lagoon, and The Prodigal.