MTV News gathers a conclave of scientists to sound off on beanstalks, giants and floating islands.
Film should take #1 at box office, but given its bloated budget, that will be a hollow victory, analysts say.
Critics praise Bryan Singer's action-adventure for hulking giants and large-scale action.
The actors of upcoming fairy-tale film debate who had the best 'do.
Plus, watch an exclusive clip from the March 1 release.