Many a '70s kid thrilled to the cheesy TV series "Land of the Lost," and some of them, it appears, grew up to run movie studios. That might explain why this decrepit property has now been turned into a movie. It doesn't excuse it, though. The picture is a CGI adventure comedy with a mild line in PG-13 laughs, a surprising lack of fresh adventure (did the filmmakers chop up an early print of "Journey to the Center of the Earth" and smoke it?), and very little in the way of digital dinosaurs and whatnot that haven't been paraded past us many times before. It's worth noting that two of the movie's funniest scenes — one involving a giant mosquito and the other a confrontation with Matt Lauer on the "Today" show — can be seen for free in the trailer. Just a suggestion.