'Journey 2: The Mysterious Island' improves upon 'Journey to the Center of the Earth'.
This is good fun. It's a shame that Brendan Fraser and Anita Briem were unable to reprise their respective roles, though the additions of Dwayne Johnson, Michael Caine, Luis Guzmán and Vanessa Hudgens are all positives. Johnson has a few silly moments (berry pecs + "What a Wonderful World"), but all in all is fairly solid.
The special effects, though still not as great as they should probably be, are upgraded, the score is also better. The plot is the main improvement, this location is more interesting than that of the last movie; admittedly the lame effects for the latter are quite the hindrance.
Seems as if a third film from this series isn't completely dead in the water, despite the now twelve year gap. It's pretty surprising that it has yet to happen given the financial success of this and the 2008 flick - studios turning down money, that's a rarity!