He's consumed elephant faeces and eaten a raw snake but a mouse marinated in the urine of a Hollywood starlet has finally broken Bear Grylls.

On the latest episode of his Running Wild program, Fast and the Furious star Michelle Rodriguez joined the British adventurer for a hike in the desert when the pair decided to share a meal.

"For dinner we've got the mouse. The thing is there's not very much of it so I want to stew it, problem is, we're out of water," he said.