At 20:45, Father and son see a full moon on the sky and the father had earlier said that he has a date with his son on every Wednesday. This movie was released on April 30, 2015, before that a full moon on a Wednesday was on Feb. 4, 2015 and on Oct. 8, 2014. There was no other full moon on a Wednesday in 2014. So, one of these two dates are most likely to be the day when that shot was taken, unless they patched in some earlier footage of a full moon.
The Torino scale is a method for categorizing the potential impact hazard associated with near-Earth objects (NEOs) such as asteroids and comets. Adopted by the IAU in 1999, it is an integer scale ranging from 0 to 10 with associated color coding, it is intended primarily to facilitate public communication by the asteroid impact hazard monitoring community.
At 32:41, Herbert says it (the asteroid) is 7.7 LDs. LD (Lunar Distance) refers to the average distance between the Earth and Moon. 1 LD = 384,401 km.