Lynn-Holly Johnson, 22 when the movie came out, plays the underaged (16, according to some sources) Bibi Dahl. Contrast Carole Bouquet, only a year older, whose character seems to be in her late twenties.
Roger Moore, the oldest actor to play Bond and 53 when the film premiered, may also be an example.
The real kicker is the famous lampshade-hanging scene with the Austrian Countess Von Schlaff who turns out to be from Liverpool (played by the Late Australian actress Cassandra Harris, wife of Pierce Brosnan until she died in 1991).
Fatal Method Acting: Stuntman Paolo Rigonu became the first fatality on a James Bond movie when he was killed when the bobsled he was driving overturned while shooting a chase scene.