Besides the obvious search-by-title function you can browse posters by categories (genre and decade). For exhample: ‘exploitation usa thirties‘. Or ‘space sci-fi fifties‘. This also allowes looking though cross-genre selections like ‘comedy-horror‘ or even ‘sexploitation sci-fi‘.
Tags are indexed as well – which helps looking for specific studios, actors and directors. Exhamples: ‘action carpenter‘, ‘hammer vampire horror‘, ‘edwige fenech giallo‘.
Please note the search engine still needs some fine tuning as it often brings absolutely unexpected results, but I’m working on it.