The flute music, eagles, sweat lodge, spirit animals, and casino are all such hoary clichés. Audiences may have left the movie understanding that Indians aren't primitive people of the past...but did they learn Indians have hundreds of different cultures and religions? Not just one clichéd culture and religion that resemble a romanticized Plains painting?
Indeed, could they tell us anything accurate about a Haudenosaunee tribe other than "they invented lacrosse"? Maybe, but it doesn't sound like it.
At this point, we've seen a number of movies and TV series that present modern Native life with reasonable authenticity. Smoke Signals, Pow Wow Highway, Thunderheart, Skins, Christmas in the Clouds, Grand Avenue, Dreamkeeper, Imprint, Four Sheets to the Wind, and so forth. If a movie isn't in the same ballpark as these movies, I'm not willing to give it that much credit. Getting things half right is only half the battle.
For more on Crooked Arrows, see Clichee´s Abound in Crooked Arrows and Onondagas Support Crooked Arrows.