A BBC Television Production in association with London Film Productions Limited. By arrangement with Gerry Blattner Productions, Ltd. ; produced by Martin Lisemore ; directed by Herbert Wise ; written by Jack Pulman
RAI RAdiotelevisione Italiana presents ; Lux Vide ; RAI Fiction ; EOS Production ; produced by Matilde and Luca Bernabei ; screenplay, Eric Lerner ; directed by Roger Young