First the success of Men in White -- then four flops in succession -- and Ullman runs away from it all -- to the Amazon. Leaving his wife at Lima, he goes into the jungles, follows the river to its mouth, then goes back through the jungles to Venezuela and home. Fun-reading -- nice swing -- casual -- personal. Joins forces with another likeable young American, and they go adventuring together. Has something of the Fleming quality without its flippancy.