Advertising is always exaggerated, I can’t imagine any product to be sold with complete honesty on how it actually performs. Nokia was recently drew a some flak for falsifying the performance of the new Lumia 920’s camera.
If the promo was done without that small flaw of the camera rolling in front of a mirror, nobody would have cared to think twice about it. Despite this, Nokia not just issued an apology, but they went as far as to invite some folk to test the camera against competitors and it actually performed well. Video editing and special effects are a reality, products that reflect how they look on the adverts are not.