She still looks good. Just saw her sister, Patricia, on a TV interview this morning, and she mentioned the famous 80's Toto song about her eponymously called "Rosanna," but said that they pronounced the name wrong! From Wikipedia:
"Rosanna Lisa Arquette (pronounced ro-ZAH-nuh) born August 10, 1959 is an American actress, film director, and producer."
Wow, who knew???