Slightly less glowing review than Owen Gleiberman of EW. Though often hilarious, "Pineapple Express" is a failed genre-melding comedy due to the inept direction of David Gordon Green.
Marc Bernardin of Entertainment Weekly Magazine examines the chances that Pineapple Express has to finally overthrow The Dark Knight as number one at the box office. He thinks the chances are good!
Violence a buzz-kill in stoner comedy, a not-so-glowing review by Michael Phillips of the Chicago Tribune. He says that it's starts off great but loses its footing near the middle.
The Wikipedia page for Pineapple Express, the movie starring Seth Rogan and James Franco, directed by David Gordon Green, and produced by Judd Apatow and Evan Goldberg.