This planet will explode within 30 days, if not sooner.
— Jor El (Marlon Brando)
7 seconds sound clip from the Superman (1978) movie soundboard.
You can hear this line at 00:12:37 in the Blu-ray version of the movie.
Quote context
[...]
- Be warned, Jor-El. The council has already evaluated this outlandish theory of yours.
- My friends, you know me to be neither rash nor impulsive.
- Jor-El, you are one of Krypton's greatest scientists.
- This planet will explode within 30 days, if not sooner.
- I tell you, Krypton is simply shifting its orbit.
- My friend, I have never been otherwise. This madness is yours.
- This discussion is terminated. The decision of the council is final.
[...]