Here are a few curated public domain film elements of historical material for Twenty Thousand Leagues Under the Seas. This material might be interesting for Hitchhiker Time Travel, though the visual richness of the material is not so immediately apparent.
# Under the Seas (1907) This is an early silent movie which pioneered underwater photography.
HTML5 webm https://upload.wikimedia.org/wikipedia/commons/7/79/Deux_Cents_Mille_Lieues_sous_les_mers_ou_le_Cauchemar_du_p%C3%AAcheur_%281907%29_par_Georges_M%C3%A9li%C3%A8s.webm
An earlier French short made by Georges Méliès in 1907 (often titled Under the Seas / *Deux cents milles sous les mers*). Principal cinematography is credited to Eugene Gaudio (Italian-born, working at Universal), while the underwater photography was done by J. Ernest & George M. Williamson using their “photosphere” system - wikipedia 
Here is the slightly later version:
ARCHIVE 20000LeaguesUndertheSea 20,000 Leagues Under the Sea directed by Stuart Paton. Publication date: 1916. Publisher: Universal Film Manufacturing Company
The Universal Film Manufacturing Company was not known in the silent era as premier producer of motion pictures. Yet, in 1916 they produced a film that could not be made effectively without expensive special effects and special photography. Universal financed the extensive production which would require location photography, large sets, exotic costumes, sailing ships, and a full-size navigable mock-up of the surfaced submarine Nautilus. archive.org
# See - Coughs and Sneezes