Hi, I am looking for the NAME OF A MOVIE with Rosanna Arquette in
which she finds out her mother was jewish and wants to know about her
roots. She gets involved in the ritual of cleaning the dead.

Hi hulove!
  
If I'm not mistaken, I believe the name of the movie is "I'm Losing You".
  
"Synopsis: On the eve of his sixtieth birthday, Perry Krohn learns he
has one year to live. He must deal with his family, including his
washed-up actor son Bertie and adopted daughter Rachel [Rosanna
Arquette], who is actually his niece. Bertie meanwhile gets involved
with HIV positive Aubrey, and Rachel works out her ennui by helping an
old Jewish woman cleanse the bodies of the dead. Then this woman tells
her that her parents were not, as she thought, killed in a car
accident, but rather her father murdered her mother then committed
suicide. All the characters must somehow come to terms with death."
http://www.hollywood.com/movies/detail/movie/180495
   
You can read more about "I'm Losing You", here:
http://imdb.com/title/tt0142393/
  
If you wish, you can order the DVD from Amazon here:
http://www.amazon.com/exec/obidos/tg/detail/-/B00000JGDA/ref=ase_imdb-adbox/102-6190083-7524930?v=glance&s=dvd
  
  
Hope that helps!
  
jackburton
  
  
-----------------
Search terms:
"Rosanna Arquette" jewish mother
"rosanna arquette" "the dead" jewish mother