Journey to the Center of the Earth

When a seismic geologist (Brendan Fraser) discovers his lost brother's notes in a copy of the titular Jules Verne novel, he and his nephew (Josh Hutcherson) head to Iceland. There, joined by a fetching mountain guide (Anita Briem), they get trapped in a cavern and go down, down, down, finally arriving in a primeval underworld full of prehistoric beasts and carnivorous plants.