Sorry, but, when it first came out, the online trailer definitley had the kid saying "Siberius" NOT "Tiberius". They did fix that in the trailer seen at theaters. There was no sibilant confusion! We all noticed it immediately! It was such a bad mistake, that I assumed it was for real and there was some story about how it got changed to Tiberius coming out in this movie. However, it appears to have been an actual mistake. Sort of scary and forboding for what the movie as a whole may bring for serious Trekers...

Star Trek
Trailer
(2:12)