Interesting start but make it more ironic
I think you need to explain what the Titanic is.
As in, start the logline by introducing the Titanic, such as…
On the maiden voyage of the passenger liner Titanic, a young socialite… etc.
An Impossible love between a young socialite and a penniless artist on board the Titanic, a ship that is about to sink. (or “… can never sink”.)
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