Director James Cameron told ITV News' Nina Nannar that he had wanted to convert Titanic into 3D all the way back in 1997, when the film was originally released. But he began tests to convert the film only when the technology became available in 2005.
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Butterflies and nerves of steel were behind the images shared and seen by millions across the globe.
The Duke and Duchess of Sussex thanked everyone who took part in the celebrations on Saturday, Kensington Palace said.
Established in 1913, the flower show has become one of the world’s biggest showcases for horticultural excellence.