Complex sentence: Carry On Spying is a 1964 film and is the ninth movie in the "Carry On" film series and marks Barbara Windsor's first appearance in the series and the last film in the series to be shot in black and white.
Split into simpler sentences: Carry On Spying is a 1964 film and is the ninth movie in the "Carry On" film series and marks Barbara Windsor's first appearance in the series. It is the last "Carry On" film in the series shot in black and white.