This list shows the most expensive films of each year since 1915. Some years do not have enough information to be able to establish any film, and many data are not entirely certain.

The data used corresponds to the website "The Numbers", who specialize in film budgets and box office.

The clips that are shown try to show the expense of the budget, in some cases it is for the special effects, in others for the scenery and some for the number of actors and extras of great size.

Source:
The Numbers