Just the sort of noble bore Oscar usually loves, this latest two-hour-plus tale from director Frank Darabont (The Shawshank Redemption, The Green Mile) stars Jim Carrey as a blacklisted screenwriter who develops amnesia and is mistaken for a small-town hero lost in World War II. Darabont and Carrey are trying to whip up some sort of Frank Capra/Jimmy Stewart homage here, but they do it with a seriousness that’s stifling.