Breaking Bad creator Vince Gilligan has suggested that the show could end after five seasons.

The AMC drama, which stars Bryan Cranston as Walter White, will begin its fourth run on Sunday, July 17.

Gilligan told Collider: "It kind of changes if you ask[ed] me last season or the season before versus this [fourth] one, but right now I would say season five should probably be our last season."

He added: "But... check with me a year from now [and] we'll see if I change my tune."

Gilligan also revealed that he is hoping to recruit Fitzcarraldo director Werner Herzog to helm an episode of Breaking Bad.

"I'm still holding out hope that [he] will direct one," he said. "My producer and I had breakfast with him months ago... and we begged him to direct an episode, but he's very busy."

Breaking Bad star Cranston previously revealed that an important character will be killed off in the show's fourth season premiere.

> Breaking Bad star teases Walt, Gus rivalry

Watch a trailer for the fourth season of Breaking Bad below:

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