Many of those images of Pocahontas have been around since Smith's own narrative, so that in this case, the Disney version of history actually lines up quite closely with the most accepted national narratives (although I don't know that Pocahontas had as good a singing voice as Vanessa Williams in those earlier narratives). As best as scholars can tell from the scanty historical evidence (scanty other than, again, Smith's own somewhat unreliable account), the realities of Pocahontas' life and identity were significantly different, particularly in terms of her relationship with Smith: she was likely very young, something like 13 at the oldest, when they met; and so if she did save him and his fellow Englishmen from execution, it was likely for reasons other than those of romance in any explicit sense. Terrence Malick's film The New World (2005) seemingly attempts to represent those realities more accurately but achieves only mixed results, casting a very young Native American actress (Q'orianka Kilcher) as Pocahontas but still portraying her relationship with Colin Farrell's John Smith in explicitly romanticized ways.
But to my mind, the most interesting and meaningful American truths about Pocahontas don't depend on whether she was 12 or 20 when she met Smith, or whether they loved each other deeply or barely knew each other, or any variation on those questions. The most significant question to me is broader and more complicated still, and is the issue of whether her identity across the centuries of narratives is more stereotyped and limiting or more layered and humanizing, whether she's just an "other" falling for the superior white guy or is in fact an American who has a rich and full an identity as any European American figure. The answer, as with any of our most complicated questions, likely lies somewhere in the middle, and a great illustration of both sides is J.N. Barker's musical melodrama The Indian Princess (1809). Barker's Pocahontas is at once entirely a stereotype and yet a fleshed-out (and not in the Disney sense) heroine, just as his play's Englishmen run the gamut from stereotypical comic relief to complex (at least for an 1809 melodrama) heroes.
We're not likely to stop telling the story of Pocahontas, since it, like all of the most engaging American stories, connects to universal and powerful themes and narratives: love and sacrifice, loss and redemption, past and tradition vs. future and change. But it also, if more subtly, reveals much of what is both worst and best about our shared American identities, within and across ethnic and racial communities, and the more we can remember and retell those elements too, the more meaningful our stories of this Indian Princess will be.