Geronimo clearly holds out his right hand showing the palm is unmarked, but when he bends down to the water to wash his hands there is a black 'X' on it.
When Geronimo takes the wagons in the river, the book he finds behind the seat has a faded red cover. Later when he gives it to Kamala Devi the cover is black.
After the Indians are chased out of the town, the army officer fires his 6-shot revolver 7 times without reloading.
The book Geronimo pockets during the river raid has a pink cover and is thick. When he later presents it to his wife, it is a thin blue Army manual.
The US Cavalry did not use Winchester rifles.
The film is set over the period of three years, yet Giantah remains the same age throughout.