Question: When was the world premier of the movie Gravity?
About the article "Gravity (film)", section "Critical response".

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In the movie "", a rotating centrifuge in the "Discovery" spacecraft provides artificial gravity.
The people would be walking inside the circle; their feet toward the exterior and their head toward the center, the floor and ceiling would curve upwards.
A rotating circular set was used in at least one instance to make this effect with the actors always at the bottom; as they walked, the set would be turned to keep the actors at the bottom and prevent them from falling over as they walked up the curved floor.
The movie also features a rotating space station.
Larry Niven's novel "Ringworld" featured a gigantic habitat encircling a star, which created artificial gravity through rotation.
Niven also makes a reference to the Coriolis effect when the protagonists see what looks like a giant eye above the horizon.
When they get closer, they realise that it is in fact a hurricane, but rotating about an axis parallel to the ground rather than perpendicular to it.
Large hurricanes on Earth rotate the way they do due to the Coriolis effect.
A number of early Known Space and Man-Kzin Wars stories also make use of rotational gravity, prior to the adoption of "gravity polarizer" technology which generates artificial gravity fields.
In the Gundam universe, gigantic space habitats similar to O'Neill cylinders, called Colonies, are an important aspect to the plot.
They spin to generate artificial gravity.
In the anime "Cowboy Bebop", the Bebop possesses a ringed area that generates artificial gravity and is often seen being used (with the rest of the ship not rotating).
The book "Rendezvous with Rama" and the sequels featured an alien construct similar to an O'Neill habitat which was able to generate approximately 0.6g on the intentionally habitable ground section.
The plot employed significant use of the difference in strength of artificial gravity as an object approaches the center of the rotating cylinder.
In the television series "Babylon 5", the Earth Alliance made extensive use of rotational gravity in its space stations and some larger military vessels, as well as civilian cruise ships.
It has been suggested that the cruise ships would alter their rate of spin gradually en route to match the destination, helping to acclimate the passengers to the new gravity they would find upon arrival.
Earlier Earth Force ships using straps and harnesses to hold crew in place, and the Minbari later share the secret of artificial gravity as part of the Interstellar Alliance.
In the stories based on Sid Meier's "Alpha Centauri", the Unity provided artificial gravity by spinning, though the game made allusions to less conventional technologies developed later on.
In John Varley's "Gaian" trilogy ("Titan", "Wizard", and "Demon"), the title world Gaia, being a torus with a diameter of 1300 kilometers, spins at a rate of one revolution per sixty-one minutes, producing an apparent gravity of one-quarter "g".
In Iain M. Banks's Culture series, Orbitals are made ten million kilometres in circumference so that they spin with a rate that gives a natural day/night cycle while the center is in orbit around a star.
In the game "", the main location of the story is an artificial ringworld that creates artificial gravity by computer-controlled rotational spin (inspired by the aforementioned Larry Niven's novel "Ringworld" but also uses some form of field or other artificially generated gravity as it is stated in Halo: The Flood, the ring world does not spin nearly fast enough to create the amount of gravity it possesses.
"Halo" (or "Installation 04") is approximately 10,000 km in diameter and is eventually destroyed by the same forces keeping it in operation.
A fusion explosion weakens part of the ringworld, and centrifugal forces tear the ring apart. 
The end of the movie (prom scene) features Raven-Symoné's song "Gravity". 
Gravity "The Conjuring" "Star Trek Into Darkness" "World War Z"  
The Delaware and Hudson Canal Company Gravity Railroad (D&H Gravity Railroad) was a historic gravity railroad in the U.S. state of Pennsylvania. 
Park set-up.
In 1989, C.V. Wood was employed to design a theme park adjacent to the existing Warner Roadshow Studio complex.
His portfolio included the design of six theme parks including Six Flags Over Texas and Disneyland.
The park was completed within 16 months, converting swampland into a theme park modelled after similar movie-based theme parks overseas such as Universal Studios Hollywood or Disney's Hollywood Studios.
The park's official opening was held on 3 June 1991.
Queensland Premier Wayne Goss marked the occasion by cutting novelty film reel at an opening ceremony which was attended by celebrities such as Clint Eastwood, Mel Gibson, Goldie Hawn and Kurt Russell.
Initial attractions at the park focused on learning about and getting involved in movie related scenes and behind the scenes action.
Opening day attractions included a Movie studio tour, Movie Magic Special Effects Show, Western Action Show, Police Academy Stunt Show, Warner Bros.
Classics & Great Gremlins Adventure, Young Einstein Gravity Homestead, Roxy Theatre and Looney Tunes Land which featured the Looney Tunes Musical Revue and Looney Tunes River Ride.