CANNES, France -- Suddenly I am aware of Emily Mortimer. I of course must have seen her in "Scream 3" (2000), but she made no impression. She was in "Notting Hill" (1999), but went unmentioned in my review. Then in "Lovely & Amazing" (2001) she had a scene of astonishing bravery in a film that was, yes, lovely and amazing. And then in the last few months have come "A Foreign Affair" (2003), "Young Adam" and now "Dear Frankie," which is a great success in the Un Certain Regard section of this year's Cannes festival.