My wife and oldest daughter went to see this last night and reported that it was really, really good. My daughter is 6 and apparently laughed throughout the film. My wife says Hank Azaria steals the film as Gargamel.
“Activism is a way for useless people to feel important, even if the consequences of their activism are counterproductive for those they claim to be helping and damaging to the fabric of society as a whole.” - Dr Thomas Sowell
Yeah, there were 4 Smurflings they added into the story several seasons later to "invigorate" the show, I assume. Kinda like adding a new kid to a family, etc.