Emily Blunt insisted on creating the alien language for her character in Disclosure Day manually

Emily Blunt has explained how she made the "strange sounds" uttered by her character in new movie Disclosure Day.

The 43-year-old actress leads the cast of Steven Spielberg's new movie playing a weather presenter who starts speaking in an alien language during a live TV broadcast - and she's now revealed she wanted to have a go at making the noises herself because she was "terrified" movie bosses might want to use AI for the task.

During an appearance on YouTube show Hot Ones, she said: "Even kind of leading up to that moment where she starts speaking in this non-human language. It’s a four-minute oner that we shot that leads up to that moment where she’s gradually sort of disintegrating.

"There’s various ways you could do it. You could go the AI route, which I’m a bit terrified of ...

"I thought I could make some really strange sounds. I said maybe I could come in and we’ll just do a range of weird sounds. And it’s what we did. I did sort of the clicking sounds, I did sort of humming sounds, consonant sounds, breathing, strange sounds ... "

Emily went on to reveal the team put one microphone by her mouth and another next to her throat to capture the sounds she was making.

She added: "[It] captures it in a really weird way. And then the sound designer went away and created that weird sound."