Forrest Gump (1994)
First digital erasing (first footage inserted in film from another footage).
4K HDR video
CGI making of video
1) Film make possible to depict Gump meeting deceased personages and shaking their hands. Hanks was first shot against a blue screen along with reference markers so that he could line up with the archive footage (digital erasing). To record the voices of the historical figures, voice actors were filmed and special effects were used to alter lip-syncing for the new dialogue. Archival footage was used and with the help of such techniques as chroma key, image warping, morphing, and rotoscoping, Hanks was integrated into it.
2) The CGI removal of actor Gary Sinise's legs, after his character had them amputated, was achieved by wrapping his legs with a blue fabric, which later facilitated the work of the "roto-paint" team to paint out his legs from every single frame.
3) Directed by Robert Zemeckis (Death Becomes Her (1992).