I don't know who did it but I guess the "correction" was wrong.

In this movie there are playing several Native Americans and I got an update with a corrected (imo "wrong) parsing of at least two of them:

Before: Clayton - Big Eagle  /  Maretta - Big Crow
After: Clayton - Big - Eagle  /  Maretta - Big - Crow

Is anybody out there knowing more about such names? I didn't accept the update of those two as they are definitely wrong in it. Writing their names the way starting with the name they would look:

Eagle, Clayton Big  /  Crow, Maretta Big

and this can't be true. Is it?

I believe the correct entry for Clayton Big Eagle is as follows:

First Name: Clayton
Last Name: Big Eagle

Refer following links:
•  full name "Clayton Z. Big Eagle"
•  IMDB record

Could not find definitive information on Maretta Big Crow, but the usage of last names "Big Eagle" and "Big Crow" were made by:
• Big Eagle (Dakota tribe in South Dakota)
• Big Crow (Cheyenne tribe in Montana and Dakota tribe in South Dakota)
  where Dakota tribe = {Brule, Dakota, Hunkpapa, Lakota, Oglala, Sans Arc, Santee, Sioux, Sisseton, Wahpeton}

as per reference: Surnames in English of Native American Origin

Based on the last reference, I would have for Maretta Big Crow:
First Name: Maretta
Last Name: Big Crow

Hope that helps.

Gotcha. Yes you were right in your parsing: Clayton/Big Eagle