Casually bashed as another one of Robin Williams’ pandering pieces of sentimental pap (Patch Adams, Bicentennial Man), this story of a recent widower in Nazi-occupied Poland is actually understated and respectful; the humor here is mostly bitter and rarely sweet. As the widower, who pretends he has a radio to bring hope to his fellow Jews in the ghetto, Williams wisely tones things down. Unlike the similarly themed Life is Beautiful, there’s not a pratfall to be found.