Harrison Ford was so frustrated with EXTRAORDINARY MEASURES co-star Brendan Fraser's fluffed lines, he had "tech talk" scenes stuck to his forehead.
The Indiana Jones star, who was also a producer of the film - about a real-life father's struggle to save his daughters with the help of a pioneering scientist - was keen to save time and money on the shoot and grew weary of Fraser's inability to get his tongue around complex medical terms.
The Mummy star recalls, "We'd spent an entire day... and it came (to me) and all I had to do was come up with one or two lines and, for the life of me, I couldn't get it right... It's the pinnacle moment.
"Harrison's like, 'F**kwit...' I said, 'I'm sorry, man, I can't get the line.' He says, 'Yes you can, there's money on the line.'
"He reached over and grabbed a piece of gaffer tape, wrote it (the line) and stuck it to his forehead... and I read the line off of his forehead."