Justin Bieber film a solid bid for credibility

LOS ANGELES: Setting out to demonstrate that overnight sensations deserve respect too, Justin Bieber should make believers out of all but the most hardened of skeptics with "Justin Bieber: Never Say Never," which opens Friday.An energetic 3D portrait of the global superstar as a down-to-earth teen from small-town Canada, the 105-minute documentary works overtime (by about 10 minutes too long) to