in the movie anything can happen . it where logic go out the window for a start . no way could you raise a ship like the titanic by set explosive under it . you would need hydraulics for a start . yet it cop out by be make bouyant by fill the ship with foam rubber . then the huge gash be patch up just like that . it be more like a fairy tale when the byzantium turn into gravel . never have read the novel a i have a short attention span it not and by the sound of it and do the novel justice . why for instance do it cost $ 40 million . and in real life if the titanic have be raise it would be the talk of the world yet here it just a 5 minute event .