It looks like the owner of the rights to Rear Window is taking the makers of Disturbia to court for using Rear Window’s storyline without paying for it.
http://news.bbc.co.uk/1/hi/entertainment/7605672.stm
To be fair though they were quite different in at least one way; Rear Window was one of the Greatest murder mysteries ever whereas Disturbia probably deserves to be taken to court anyway for crimes against film.