Rewriting the Star Trek 3 script was due to Paramount‘s desire to make more money, said Simon Pegg.
Paramount wanted to see box office returns more like those from Avengers Assemble and less like those from Star Trek into Darkness.
“Avengers Assemble, which is a pretty nerdy, comic-book, supposedly niche thing, made $1.5 billion dollars,” said Pegg. “Star Trek: Into Darkness made half a billion, which is still brilliant.
“But it means that, according to the studio, there’s still $1 billion worth of box office that don’t go and see Star Trek. And they want to know why.”
According to the studio, the problem was with the script, namely that it wasn’t broad enough to entice non-Trekkies into the theater. “They had a script for Star Trek that wasn’t really working for them,” said Pegg. “I think the studio was worried that it might have been a little bit too Star Trek-y.”
“People don’t see [Star Trek] being a fun, brightly-colored, Saturday night entertainment like the Avengers. [So] make a western or a thriller or a heist movie, then populate that with Star Trek characters so it’s more inclusive to an audience that might be a little bit reticent.”
Source: The Guardian