Which stars would make the ultimate summer movie?

Updated: 

Julia Roberts plus Harrison Ford plus Tom Hanks = megabucks.

That's the word from Empire magazine, where film buffs have worked out the ideal recipe for a summer blockbuster.

Harrison Ford at the 73rd Annual Golden Globe Awards
Harrison Ford (Jordan Strauss/AP/PA)

Looking at box office takings, they have deduced that the three Tinseltown heavyweights are the ideal stars for a summer film.

Tom Hanks (Daniel Leal-Olivas / PA)
Tom Hanks (Daniel Leal-Olivas/PA)

Then, sit Steven Spielberg in the director's chair.

Filmmaker Steven Spielberg speaks at Harvard University
Steven Spielberg (Steven Senne/AP)

Then get Pixar to make the film.

Add it all together.

And you get this:

Piles of money
Piles of money (Julie Jacobson/AP/PA)

Empire devised the formula to celebrate the launch of EMPIRE LIVE taking place at the O2 in September.