Alan Horn Remembers Rob Reiner

Alan Horn and Rob Reiner
At Castle Rock Entertainment, Alan and Rob were partners from 1987 to 1999, but the pair had known each other since 1973 Photo: Chelsea Lauren/Variety/Penske Media/Getty Images
Kim Masters
December 16, 2025

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Alan Horn and Rob Reiner were partners in Castle Rock Entertainment from 1987 to 1999, but the pair had known each other since 1973, when Reiner was on All in the Family and Horn was working for Norman Lear. While still in shock at the news of Reiner’s death, Horn agreed to talk tonight about their time together at Castle Rock, where Horn and Reiner were partners with Martin Shafer, Andrew Scheinman, and Glenn Padnick.