there was a young blond man (like young blond brad pitt looking guy. not sure if it was him or not) and he kept having this flash back about this little girl falling off of a staircase and hes a little boy in the flashback. In other scenes hes like running through the city on rooftops and such. Pleassssee help me. i really want t see this movie and I've been trying to remember what its called for years now.