The film is very good: adventure at its best. The effects are outstanding and you do not feel the 2 hours 40 minutes it lasts. The IMAX experience, however, was not up to expectations. The film was not shown in full screen, the 3D glasses were not the sophisticated IMAX ones, but bi-color specs. Despite the announcement, previous to the show, that all IMAX technical details had been preserved, I think I got the short end of the stick, by paying IMAX and getting run-of-the-mill 3D.