The performances by Mr. Johnson, Mr. Hart and Mr. Black seem informed by the conviction that if they amuse themselves, they will also amuse others.
(The movie’s director, Jake Kasdan, happens to be the son of Lawrence Kasdan, who worked as a screenwriter with Mr. Spielberg on Raiders of the Lost Ark.)
They are not entirely wrong, but they are also not sufficiently right.
Their adventure often asks, “What would Steven Spielberg do?”