Christopher McQuarrie shares how one viewer reacted to a thrilling Tom Cruise stunt in an early Mission: Impossible – The Final Reckoning screening.

The Final Reckoning director Christopher McQuarrie says the upcoming eighth instalment of the Tom Cruise-led action franchise features "the most difficult thing" they've ever done in the series – and it's already received a perfect first reaction from an early viewer.

The question of what will become of Tom Cruise’s Ethan Hunt has long plagued the Mission: Impossible series, but this answer has already been given.