Looney Tunes-inspired misadventures are almost always a welcome distraction -- even if we already saw too much of this material in teasers released last year . `` Ice Age : Denis Leary is the fourth movie in the series . Reviewer says the formula is getting stale . John Leguizamo , Ray Romano and Continental Drift '' voice the main characters .
`` Ice Age : Denis Leary is the fourth movie in the series . Reviewer says the formula is getting stale . John Leguizamo , Ray Romano and Continental Drift '' voice the main characters .