Upside Down (French: Un monde à l'envers) is a 2012 romantic science fantasy film written and directed by Juan Diego Solanas and starring Jim Sturgess, Kirsten Dunst and Timothy Spall.

Adam tells the story of his two-planet home world, unique with "dual gravity", allowing the two planets to orbit each other in extremely close proximity.

Adam then reveals that he didn't give Trans-world the main secret ingredient of his compound, leaving the company unable to manufacture the product without him.

With Bob's help, he goes back to the Dos Mundos restaurant where he had met with Eden and finds out she has begun to remember him.

The police arrest Eden while Adam falls the remaining distance between worlds, surviving thanks to his inverse matter vest.

It was released in France on 27 March 2013 (Mauvais Genre Film Festival)[5] and, more generally, on 1 May 2013 through the local branch of Warner Bros., while the distribution rights were bought by Millennium Entertainment for North America and by Icon for the United Kingdom.

The French production company Studio 37 initially searched for an American co-producer, and received positive response from Hollywood representatives who read the screenplay.

However, because of cultural differences, they decided to look for European partners instead, as they thought it would be essential for the project to be driven primarily by its director.

Producer Dimitri Rassam said: "We couldn't have made Upside Down without the French funding system but there was no way we could have shot [in France] because the tax rebate is not attractive enough.

The site's consensus reads, "In spite of its wonderfully unusual premise and talented cast, Upside Down fails to offer much in the way of compelling drama to anchor its admittedly dazzling visuals.

[11] Mick LaSalle was one of several reviewers who admired the film's "brilliant" and "imaginative basis" while feeling ultimately disappointed, saying its "rich and bizarre premise is supported by fully realized visuals that make the fantastic real... it's all very enjoyable."

However, he wrote, "The only problem is that, after creating the most wonderful fantastic frame, Upside Down doesn't devise a picture worthy of it.

Depicting the Romeo and Juliet-style romance between lovers from twin planets with opposite gravitational pulls, this head-scratcher boasts visual imagination to spare even as its logistical complexities and heavy-handed symbolism ultimately prove off-putting.