Several actors have found themselves cast in major roles with little to no preparation time, leading to some interesting behind-the-scenes stories in the world of film and television. From last-minute replacements to sudden casting decisions, these actors had to jump into their roles without the luxury of extensive preparation.
One such example is the casting of Kurt Russell as R.J. MacReady in The Thing. Director John Carpenter was initially hesitant about casting Russell and only made the decision the day they flew out to film the movie. In fact, there's a scene in the film where MacReady flies a helicopter, but it's actually a pilot in the character's costume because Russell wasn't available yet.
