Eddie Redmayne and Felicity Jones have co-starred in “The Aeronauts.”

Redmayne revealed that he and Jones “nearly” died on the film set.

The film was set in the 1860s and had the actors make use of a hot air balloon.

Redmayne said he and Jones crashed from 30 meters in the air.

The duo were wrongly informed by an “expert” to throw out the ballasts in the hot air balloon, there by losing the ability to control the contraption.

The crash caused Jones to hit her head on a bar in the balloon.

The actors fortunately survived the fall without any serious injuries.

Redmayne isn’t sure of his future in “Fantasy Beasts.”

He played Newth Scamander in the three movies.