Often, when a movie turns into a box-office hit, the audience eagerly anticipates its sequel. Many times, these sequels are pre-planned during the development of the first film, bearing in mind that it may take a series of installments to deliver the full story, something that frequently happens with screen adaptations such as Harry Potter. On other occasions, sequels are triggered almost fortuitously, spurred by the unexpected success of the original film. These follow-ups usually focus on a new storyline starring familiar and beloved characters and, due to the high expectations of the audience, they can either turn into huge hits or resounding flops.
Here are some situations in which actors who brought iconic movie characters to life had to be replaced by others in sequels.