A note on the Lost City of Z

Just a note on The Lost City of Z, in that I watched "only" the first 90 minutes, foregoing the last hour - not that it was a terrible movie - it wasn't - but for a great adventure story about the early 20th-century explorations in South America, it was so flat and predictable - the good guys are good and brave and nobel and handsome, and the heavies are stupid and homely and buffoons. Worse, the voyages to SA (there are 3) are poorly presented cinematically: It all has the look of a back-lot production (even if it wasn't) and it's really hard to follow the narrative of each expedition: for example, they seem to be heading off into the jungle far beyond any civilization or settlement, but all of a suddent when one of the "heavies" gets injured they put him on horseback and send him back toward the base. Huh? Many other examples of the same sort. Also, the very fact of 3 expeditions - though it must be historically accurate (as this film is based on real events) - diminishes our interest in each. Despite a feeble attempt to make this about class politics (and father-son relationships), it all falls apart - not nearly as good as, say Wim Wenders's various SA films (Fitzcarraldo, e.g.).