so I read the book rebel soul wich is about a ghost falling in love with a human girl ( nathaniel pierce and lorelei cordeleia)

Be sure to watch Ghost with Patrick Swayze and Demi Moore.

There's a very old movie in black and white, The Ghost and Mrs. Muir.
Very slow plot, but it's the first one that comes to my mind.
Tons of vampire movies, of course.

Ghost 1990 10 out of 10 Romantic Drama
Just Like Heaven 2005 10 out of 10 Romantic Drama Comedy
Casper 1995 10 out of 10 Ronatic / Comedy / Kids
The Haunted Mansion 2003 8 out of 10 Comedy / Kids / Romance
Frighteners 1996 10 out of 10 Comedy / Horror / Kids

Cannot think of more right now...

Grant Hills
South Africa