 At the Guard of Honour, the vicar's choir sings half the French National Anthem ("they didn't have time to learn it all"), Wilson gives a welcoming speech in French, and the French General is so overcome he kisses Wilson, then Mainwaring, on both cheeks.Then the flash of Private Cheeseman's camera startles him, and he steadies himself with his hands against the Rolls Royce, so that when he kisses the outraged Warden Hodges he ends up with black paint all over his face.The main car used in the episode was a 1934 Rolls-Royce 20/25, that belonged to a television and film prop company.