Can't locate a movie I saw approx 10 years ago. Don't know any actors. All I remember was a man who is mortal {not a ghost }having dinner in a huge mansion with a load of dead people . Only he thinks they are alive . He falls for one of the females who has enticed him.there is a little girl I think with blonde hair who happens to be the same girl only when she is about 8 yrs old who is warning him not to get involved with her older self. I remember the place burning to the ground ridding of all the ghosts , while he walks away with the little blonde girl unharmed. I think all the ghosts were family

Sounds like The Haunted (by the way, the little girl isn't a younger version of the woman (ghost) he's enticed by, it's the ghost of his younger sister who had died years before... ) Have seen this movie quite a few times, I enjoy it.
Kate Beckinsale - Haunted Trailer - YouTube (http://www.youtube.com/watch?v=QWnpQNEgTCM)