The 31-year-old director said the film is going to be bigger than before, reported Aceshowbiz.
"The audience should expect an epic, massive, huge, multi power slugfest. This movie is big. A lot of stakes," the director said.
"Fantastic Four" revolves around four young outsiders who teleport to an alternate and dangerous universe and alter their physical form in shocking ways.
The movie stars Miles Teller, Michael B Jordan, Kate Mara, and Jamie Bell star as Reed Richards (Mr Fantastic), Johnny Storm (Human Torch), Sue Storm (Invisible Woman), and Ben Grimm (The Thing).