Spider-Man: Homecoming is a 2017 American superhero film based on the Marvel Comics character Spider-Man, co-produced by Columbia Pictures and Marvel Studios, and distributed by Sony Pictures Releasing. It is the second Spider-Man film reboot and the sixteenth film in the Marvel Cinematic Universe (MCU). The film is directed by Jon Watts, from a screenplay by the writing teams of Jonathan Goldstein and John Francis Daley, Watts and Christopher Ford, and Chris McKenna and Erik Sommers. Tom Holland stars as Peter Parker / Spider-Man, alongside Michael Keaton, Jon Favreau, Zendaya, Donald Glover, Tyne Daly, Marisa Tomei, and Robert Downey Jr. In Spider-Man: Homecoming, Peter Parker tries to balance high school life with being Spider-Man, while facing the Vulture.
Chroma key compositing, or chroma keying, is a special effects / post-production technique for compositing (layering) two images or video streams together based on color hues (chroma range). The technique has been used heavily in many fields to remove a background from the subject of a photo or video – particularly the newscasting, motion picture and videogame industries. A color range in the foreground footage is made transparent, allowing separately filmed background footage or a static image to be inserted into the scene. The chroma keying technique is commonly used in video production and post-production. This technique is also referred to as color keying, colour-separation overlay (CSO; primarily by the BBC), or by various terms for specific color-related variants such as green screen, and blue screen – chroma keying can be done with backgrounds of any color that are uniform and distinct, but green and blue backgrounds are more commonly used because they differ most distinctly in hue from most human skin colors. No part of the subject being filmed or photographed may duplicate the color used as the backing.