@virkia - Must take you to task on a few topics here:
Heaven's Gate was really only a 'flop' because the studio butchered it - it is now, and quite rightly, considered a masterpiece.
Cleopatra was NEVER a flop! It was the highest grossing film of 1963, and was generally regarded as a great film, than as now. Financially it was ruinous due to the massive cost overruns, but that is an entirely different issue.
It's A Wonderful Life received mixed reviews, but only really struggled at the box office as it was up against some stiff competition in the form of A Matter Of Life And Death to name but one.
The Night of The Hunter, Charles Laughton's sole outing as Director by the way, was generally well received and could never be considered a 'flop' by any stretch of the imagination.
Once Upon A Time In America is another case of the studio hacking away at the director's original version, and the majority of critics savaged the studio's handling of the film, not the film itself. In it's original director's cut it has always been regarded, then and now, a masterpiece.