In 'Mon meilleur ami' (2006), Bruno (Dany Boon) mentions Daniel Gélin while answering one of the questions of the game show 'Who Wants to Be a Millionaire?'.
Daniel Gélin published three books about gardening: "Mon jardin et moi" ('My garden and I', 1984), "Guide du jardinage facile en ville" ('The easy gardening in town guide', 1993) and "Le jardin facile" ('Easy garden', 1998).
He was the son of Yvonne (Le Méner) and Alfred Ernest Joseph Gélin.