« black swan » and this movie are twins because they take the same Tchaikovsky ballet with the same supernatural treatment : personality split. I don't buy serendipity and as always, the first try is the more interesting : here, we have the opportunity to go to Budapest. Next, we don't have gratuitous trendy sex but a classic candid romance instead. If Jen and Natalie are as much candid and good ballerina, there is more dark poetry here than later. Sure the movie is much less psychotic or disturbing, it has no awards or box-office but it's not about a difference in quality: the (long) final looks also like "Godfather III" with action happening in a opera house but reveals a funny surprise as well!
Review of Ballet
