The Crimson Blade (UK: The Scarlet Blade) is a 1963 British 'Hammer Film Productions' adventure drama film. It features Lionel Jeffries, Jack Hedley, Oliver Reed, June Thorburn, Michael Ripper, and Duncan Lamont.
The Scarlet Blade is set during the English civil war. A cruel Roundhead Colonel is on the trail of royalist sympathisers, but unaware of his daughters royalist sympathies. When she falls into a love triangle with Cavalier Edward Beverly and Roundhead officer Captain Sylvester the stage is set for double crossing and derring do.