yeah..haha...it's a tricky one! ill try you way..sound like it could work if done well (and sneaky)
Also take a minute to have a read of that webpage i posted above....It is a great read about the making of the cg effects..
The first scene with the ship is totally cg and looks so god dam real!!..
Sometimes you eat the bear...Sometimes the bear eats you...
Either way...shit happens