As directed by Raja Gosnell, 'The Smurfs' hits every required element for such movies: musical number, toilet gags, rib-nudging pop-culture references, sloppy sentimentality. The familiar blue faces from the '80s cartoon, now in CGI, form-fly through a vortex from their Smurf village to New York City, where they can be a problem for an overworked, soon-to-be-first-time-dad marketing executive (Neil Patrick Harris). Grade: D-.