Back in the 20th century, there was an unwritten consensus of sorts that actors and actresses over a certain age should not be involved in heavyweight love scenes. But over the last decade, veteran performers have been cast in romantic comedies of all kinds, with or without garments. Fifty is the new 30 — and so is 70! And now 56-year-old Annette Bening pairs off with 64-year-old Ed Harris in "The Face of Love," the kind of genuinely sappy love story they used to make.