These days, love and real estate seem to go hand in hand when it comes to U.S. cinema. Throw in encroaching old age and you have a winning film: an adult love story that many aged city dwellers can truly relate to. Considering that one in four Tokyo residents are older than 65, it's no wonder older people are still flocking to the theaters to see "5 Flights Up," starring septuagenarians Diane Keaton and Morgan Freeman as a couple dealing with housing problems in New York. And now here's "Love is Strange," a grittier and more realistic take on the formula.