Johnson also directed many acclaimed movies for television like Fear on Trial with George C. Scott and That Certain Summer and The Execution of Private Slovik, both starring Martin Sheen, as well as Wallenberg: A Hero’s Story; Lincoln; Ernie Kovacs: Between the Laughter; Unnatural Causes; The Kennedys of Massachusetts; and Crash Landing: The Rescue of Flight 232. Among his feature directing credits are Covenant with Death; Kona Coast; The McKenzie Break; The Last American Hero; Lipstick; One on One; Somebody Killed Her Husband; Cattle Annie and Little Britches; and Space Hunter: Adventures in the Forbidden Zone.
Throughout his career, Johnson tackled big issues like racism, homosexuality, genocide, and violence. For his distinguished body of work in television, he received eight DGA Award Nominations and won five DGA Awards for directing The Oscar Underwood Story episode of the mini-series Profiles in Courage and the dramatic short Birdbath, as well as the movies for television My Sweet Charlie, That Certain Summer, and Lincoln. He was also honored with eleven Emmy nominations and received two Emmys for directing Wallenberg: A Hero’s Story and Lincoln.
Lamont Johnson served on the Directors Guild's National Board from 1977 to 1979 and was a founding member of the DGA’s Special Projects Committee.