Simon Otto's directorial debut.
That Christmas was originally expected to be released by Warner Bros Pictures under its Warner Animation Group banner. However, in June 2022, Netflix acquired the distribution rights to the film with Netflix Animation taking over to produce. Unfortunately, Warner Bros. Pictures had no involvement with this film for unknown reasons.
In November 2019, it was announced that Locksmith Animation was developing That Christmas, an animated feature based on a series of Richard Curtis-penned children's books.