Reinhardt called it mutiny and killed Mister McCrae.
3 seconds sound clip from the The Black Hole (1979) movie soundboard.
You can hear this line at 00:59:07.520 in the Blu-ray version of the movie.
Quote context
[...]
- The risk is incidental compared to the possibility to possess the great truth of the unknown.
- There, long-cherished laws of nature simply do not apply. They vanish.
- The officer the men trusted most was Frank McCrae. Kate's father.
- They turned to him when Doctor Reinhardt ignored the orders to return home.
- He tried to take control of the Cygnus.
- Reinhardt called it mutiny and killed Mister McCrae.
- They were captured by the sentry robots and are still on board.
- In the command tower, the power center.
- The most valuable thing in the universe, intelligent life, means nothing to Doctor Reinhardt.
[...]