The Best Intentions

TITLE: JACK THE BEAR

DIRECTOR: MARSHALL HERSKOVITZ

WRITER: STEVEN ZAILLIAN

THE BOTTOM LINE: Filmmakers with sitcom sensibilities aim for sober truth and end up in gloomy muddle.

We are supposed to take John Leary (Danny DeVito) warmly to heart. He has a childlike nature, at its best whimsical and gallant, at its worst careless and a little dim about the relationship between cause and effect. A recent widower, he is doing his best to single-parent two young boys (Robert J. Steinmiller Jr. and Miko Hughes) and to make good in his cute new job (as the comically ghoulish host of midnight...