Cameron Diaz is helping Harry Potter actress Emma Watson make it in Hollywood.
Watson, 21, bowed out of the 11-year series in an Oscar de la Renta ball gown at last week's premiere of the final film.
Now Diaz, 38, is taking her under her wing after they met at last month's MTV awards.
"Cameron has given her tips on how to handle the pressures in Hollywood," says a source.
