Was the car used in the yellow Rolls-Royce film of 1964 the same car ued in the Darling Buds of May?

Hi, we own the 1926 Rolls-Royce that was in the Darling Buds of May. This car is a 20hp Landaulet. The car that was used in the film The Yellow Rolls-Royce was a Phantom, so not the same car.