Georgina Renard

When oil flows unevenly, the cost of that instability shows up on receipts around the world.

This is the moment Obi-Wan Kenobi is killed by Darth Vader in the first Star Wars film.

It's a pivotal scene, but if it wasn't for Marsha Lucas, it may have never happened.

She is credited with convincing the film's director, George Lucas, to take the bold step of killing off one of the main characters.

This is one of many edits made by Marsha to the first three Star Wars movies, adding emotional depth and narrative clarity to the films.

George Lucas credited her with helping make sense of the vast amount of footage filmed for the climactic Death Star battle sequence in Episode 4.

But her success wasn't limited to the Star Wars franchise.

Marsha also collaborated with the director Martin Scorsese on a string of his acclaimed films, including Taxi Driver, Alice Doesn't Live Here Anymore and New York, New York.

Marsha died on Wednesday at her home in California.