We almost heard Jor-El speak Kryptonian which would have been cool.
Linguist Dr. Christine Schreyer, creator of the film’s take on Kryptonian, explained, “They did film a few pieces because people got really excited about it, but it was in the middle of production and they were thrown in and they didn’t really flow with everything else, so they got cut out.”
The sequence referred to by Dr. Christine Schreyer during her appearance on the SuperHouse Podcast takes place towards the middle of the film when Clark Kent discovers the downed Kryptonian ship and speaks to the digital projection of Jor-El. In the unused version of the sequence, Jor-El spoke Kryptonian to his son, rather than the standard English seen in the final cut of the movie. As Clark’s first ever introduction to the culture of his people, it seems reasonably likely that the use of the language would’ve been an incredibly emotional moment for him.