One of the most infamous of film debates is, of course, whether both Jack and Rose could have fit on the door at the end of 'Titanic' (warning: spoilers ahead for this 25-year-old movie).
The end of the film sees the ship go down, and survivors forced to scavenge for anything that can keep them afloat and alive in the freezing temperatures of the mid-April Atlantic Ocean.
The two main characters, Jack (played by Leonardo DiCaprio) and Rose (played by Kate Winslet) end up in the ocean with a door from the ship to keep them afloat.
Ultimately, Jack perishes after being left in the freezing cold water while Rose lies on the door. For years, film fans have pushed the narrative that Jack could also have fit on the door, thus saving them both.
'Titanic' director James Cameron has long denied these claims - and now intends to scientifically prove that it was impossible for both characters to survive on the door.
James Cameron to prove that Jack couldn't have survived 'Titanic'
In the wake of the release of his latest film, Avatar: The Way of Water, James Cameron has found himself discussing a film he made 25 years ago.
Titanic - at the time the highest-grossing film ever released - still invokes intense debate among film fans due to the manner in which DiCaprio's character perishes.
James Cameron has long denied that Jack and Rose would both have fit on the door, and now intends to prove it in an upcoming feature.
We have done a scientific study to put this whole thing to rest and drive a stake through its heart once and for all.
We have since done a thorough forensic analysis with a hypothermia expert who reproduced the raft from the movie and we’re going to do a little special on it that comes out in February.
We took two stunt people who were the same body mass of Kate and Leo and we put sensors all over them and inside them and we put them in ice water and we tested to see whether they could have survived through a variety of methods and the answer was, there was no way they both could have survived.
Only one could survive.
We imagine that, even if Cameron can prove that only one of the Titanic lovers could have survived on the door, plenty of film fans will struggle to "let go" of their long held beliefs.