I just assumed the Japs would be SO much more into Trek!!!
Yes, the J word is offensive. Don't even try to defend your use. Just stop using it.
Trek is pretty minor in Japan. Among the foreign SF franchises, Star Wars is much more popular.
I saw the movie last night in the smallest theater of an 8-screen Warner multiplex here in western Tokyo. Of the 20 people in attendance, 17 were men, of whom 3 were non-Japanese (probably Americans).
US movies are released in Japan within a month of the US release if they have big stars popular in Japan (eg, Brad Pitt, Tom Cruise, Angelina Jolie) or are parts of big franchises that have already proven popular (Terminator, Harry Potter, Bond). However, even they might be held until the July/August school holidays, Golden Week (first week of May), or New Years'. Some movies may get delayed 6 months or a year, or may never open except in small art-house theaters. Lots of movies go straight to DVD in Japan (after a year). Comedies are an especially hard sell, unless they're mostly physical. (Mr. Bean is popular here). I can usually get most movies faster and cheaper via Amazon US.
Ticket prices in Tokyo are pretty high. Average general admission is 1800 yen (at about 100 yen per USD). Luckily, married couples 50 and older get in for 2000 yen. Pamphlets aren't free: they cost 400 to 800 yen. Movie-going isn't nearly as popular as in the US. In 2004 (the last year I have data), Japan had 170 million total admissions for a country of 130 million (1.3 admissions per person). In the US in 2007 there were 1400 million admissions for a nation of 300 million people (4.7 admissions per person).