10. Pirates of the Caribbean: On Stranger Tides
The fourth instalment of the successful Pirates of the Caribbean series, On Stranger Tides, had an impressively sizeable budget of $410.5 million, $55 million of which was spent on paying leading man Johnny Depp his dues.
Luckily, this big budget paid off, and the film raked in $1.45 billion worldwide, making it the 3rd highest-grossing 2011 film. Still, who would have thought that this would be the most expensive film ever made?