Divides the frame into multiple sections to simultaneously display different actions or perspectives.
Technical Details
Split screens are created through multiple exposures of 35mm film with precise masks or, since the 1970s, through optical printers. With a vertical split, the left half of the image is exposed first with the right side masked, and then vice versa. Modern digital systems work with exact pixel boundaries – with 4K material (4096×2160), a vertical split results in two fields of 2048×2160 pixels each. Common variations include: double split (vertical/horizontal), quad grid, asymmetrical splits (70:30), or triptych arrangements with three fields.
History & Development
Abel Gance first systematically used split screens in 1927 in "Napoleon" with his triptych process on three 35mm screens. Brian De Palma perfected the technique in the 1970s with "Carrie" (1976) and "Dressed to Kill" (1980), where he showed up to four simultaneous storylines. The TV series "24" (2001-2010) established the multi-split as a trademark with up to six simultaneous windows. Quentin Tarantino revived the classic double split for phone conversations in 2003-2004 with "Kill Bill."
Practical Application in Film
Phone conversations show both participants simultaneously without cut-aways – as in "Pillow Talk" (1959) or "Kill Bill Vol. 1." Parallel actions intensify tension: in "Carrie," prom preparations overlap with the revenge plan. "24" used splits for real-time storytelling over 24 hours. The workflow requires a precise planning phase, as both image parts must be composed equally. Disadvantage: the reduced image size per storyline can dilute details.
Comparison & Alternatives
Picture-in-Picture overlays a smaller image onto the main image, while Split Screen creates fields of equal value. Cut-away editing shows the same content sequentially rather than simultaneously. Multi-cam setups provide the raw material for splits but are not identical to the final image composition. Modern VR productions use 360° splits for spatial storytelling. Widescreen formats favor horizontal division (2.35:1), while 16:9 material is usually divided vertically.