I originally drafted this entry last year as a piece of op/ed then Trevor's name was removed from the credits fairly quickly so it was a dead issue of sorts, but I still believe this makes for a good cautionary tale regarding how much faith one should put into what is reported online, and how fans shouldn't rush to conclusions based on what is potentially unreliable information.
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In March 2016 the IMDb entry for the upcoming film MEG was edited adding a couple credits: Jon Turteltaub as director and Trevor to score. Now I agree that these two go together like macaroni-and-cheese (and all which that simile implies) but it just seemed like a rather big assumption given what we know of the context of Trevor's activities in the next couple years. I tend to be suspicious of IMDb entries without supporting citations because like Wikipedia, anybody can edit the database.
So let's step back and look at the evolution of this project, which resided in Development Hell for nearly twenty years until Flagship Entertainment, a joint venture between Warner Bros. and the Chinese company Gravity, released a roster of twelve projects for their initial offerings, one of which was MEG. Originally horrormeister Eli Roth was on tap to direct, having come attached to the most recent script. But shortly after Roth's announcement that he was off the project, it was reported that Turteltaub was in "early talks." A month later, with no actual official announcement of Turteltaub's involvement came another report that actor Jason Statham was being considered for the lead role.
So at that point it's looking very convincing in terms of Turteltaub's involvement. But that does not necessarily mean Trevor would be involved as well - after all, beyond ARW's plans for 2017, there's also a probable third season of 12 Monkeys to consider. However, because Trevor is likely to accept scoring assignments from directors he's worked with previously, it's a reasonable inference that he would work on this movie, that he would be willing to make the time if possible. So I can completely understand why his name was added to the IMDb entry. But that doesn't make it true. And the lack of many key personnel is also indicative of early speculation rather than concrete information.
Turtletaub did sign on to direct the film, and Statham was cast in the lead. But Trevor announced in interviews he was not going to be accepting work for a while and parted ways with his agent, which also meant that he and Paul Linford did not score the third season of 12 Monkeys.
Present-day addendum:
Admittedly, given MEG's August 2018 release date (postponed from its' original target of March) and what Trevor has said recently about taking on scoring projects during his time off from ARW, I was beginning to wonder if this would be one of the purported assignments he stated he wasn't allowed to name. But as it turns out Harry Gregson-Williams has scored the film, and thus my previously-stated reservations were, in fact, entirely appropriate.