Dennis Harvey Film Critic Feel-good stories out of Gaza are not exactly plentiful at present, making “Life Is Beautiful” something of an anomaly. Though the predicament depicted — Palestinian filmmaker Mohamed Jabaly’s unplanned long exile due to closed borders and political shifts — is hardly upbeat in outline, his ebullient personality insists on emphasizing humor and warmth. Thus this chronicle of a one-month visit to Norway that drags on for seven years ends up an incongruously charming footnote to a much larger conflict that just keeps escalating.