What do these famous stories have in common?

Look at the following film posters and try to find a common theme.

Casablanca (1942)

North by Northwest(1959)

Breakfast at Tiffany’s(1961)

Bonnie & Clyde (1967)

New York, New York(1977)

A Room with a View(1985)

Titanic (1997)

Notting Hill (1997)

Pride and Prejudice(2005)

Jane Eyre (2011)

Baby Driver (2017)

Gone with the Wind(1939)

And maybe the most famous…