In the live-action film The Lord of the Rings: The Two Towers, the upper Hutt River in Kaitoke Regional Park, New Zealand, was used as a location for the Fords of Isen scenes.
After departing the town of Faldham, where Elfhelm's son Elfmar rules in his father's absence at the Fords of Isen, they make their way to Eaworth in the Entwash Vale, near the edge of the Fangorn Forest.
Riders led by Grimbold hold the Fords of Isen against inevitable assault, while Théodred, son of King Théoden, leads a smaller scouting party into the lands of the Dunlendings, who have been sworn enemies of Rohan for centuries.
He also appears in the posthumously published Unfinished Tales, as the captain of the riders that allowed their companions to escape of the siege of the uruk-hai during the Battles of the Fords of Isen.
An account of the first Battle of the Fords of Isen in Unfinished Tales apparently treats Uruk-hai and "orc-men" separately.