Watch on 123Movies. WHO’S HOLIDAY! Is a wildly funny and heartfelt adults-only comedy that tells the story of Cindy Lou Who as she recalls that Christmas Eve she first met the Grinch and the twisted turn of events her life has now taken. You saw her last when she was just two Celebrate the holidays with Cindy Lou Who Pull up a seat and fill up your cup ‘Cause your favorite little Who is all grown up