The X Rays
The XRays AKA The XRay Fiend is a 1897 British short silent comedy film, directed by George Albert Smith, featuring a courting couple exposed to Xrays. The trick film, according to Michael Brooke of BFI Screenonline, contains one of the first British examples of special effects created by means of jump cuts Smith employs the jumpcut twice first to transform his courting couple via X rays, dramatized by means of the actors donning black bodysuits decorated with skeletons, and then to return them to normal. The couple in question are played by Smiths wife Laura Bayley and Tom Green a Brighton comedian.
Source: Wikipedia