1956 movie Anastasia starring Ingrid Bergman

  Anyhow, once I got over the fact that it had very little to do with "real life" I have enjoyed this... besides Ingrid Bergman was a stunning actress.

Exactly. Even though it mangles the history, I love this movie -- I'm a sucker for Ingrid Bergman and Helen Hayes.

Hey, I finally saw this on Thursday night.  Superbly acted, beautifully filmed.  My uncle sat through it (which he often won't) but complained of the "singularly unsatisfying ending."

By the way, the sleeve in which Netflix ships the film contains a description debunking Anna Anderson, and the film itself opens with a disclaimer.  Fictional film, good in some ways, not to be confused with history.  It seemed like this film tried really hard to be "My Fair Lady" (that movie wasn't out till later but the play was) and it sounds very much as if the cartoon borrowed a lot from this film.