You may or may not already know this, but Thor director Kenneth Branagh had a cameo in Avengers: Infinity War and hardly anyone noticed.

In the digital release of Avengers: Infinity War, it's revealed that although Branagh doesn't physically appear in the Marvel film, his voice is featured in the Asgardian distress call at the beginning of the film.

Jun Sato/WireImage Getty Images

Branagh's character is heard but not seen as he desperately calls for help while Thanos' forces mercilessly attacked a ship full of Asgardian refugees and massacre the citizens inside.

In the film's opening moments, Branagh can be heard calling for help while Thanos' forces attack a ship full of Asgardian refugees.

Marvel Studios

His character says: "This is the Asgardian refugee vessel Statesman... we are under assault. I repeat, we are under assault.

"Engines are dead. Life support failing. Requesting aid from any vessel within range. Our crew is made up of Asgardian families, we have very few soldiers here.

"This is not a warcraft. I repeat, this is not a warcraft."

Meanwhile, director Joe Russo has now explained why Hulk (Mark Ruffalo) decided not to fight, adding that his choice actually means bigger things for his role in the MCU.

"This was an interesting journey we went on with [Bruce] Banner, trying to decide how we move him forward in the Marvel Universe," he revealed.

Avengers: Infinity War is available to pre-order on Blu-ray, DVD or digital download ahead of its release on September 3.

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