I was just thinking about what got me into different things like anime/ games/ comics etc and thought it would be fun to see what brought others into the fold. For me it was
Anime: Princess Mononoke, saw it when I was 10? And it completely floored me with the art style, story, and lore. Still my favorite anime movie to this day.
Video games: Sega Genesis/ sonic the hedgehog and altered beast with my older brother were great times when I was little and got me into gaming.
Comics: Spider-Man and X-men on fox kids in the 90s and Spawn in 97. My first official comic/ graphic novel was Wolverine: Origin
Anime: I've been watching things like Pokemon and DBZ since I was a kid, but never really associated it with anime itself. For that, it would be Death Note quickly followed by Fullmetal Alchemist 2004.
Manga: Tie between Gunnm and Akira.
Games: OG Doom. Breaking it down into genres, Doom stands for FPS/action, Crash Bandicoot for platformers/adventure, Suikoden 2 for JRPGs/RPGs in general. That covers most of what I tend to play and adjacent categories.
Comics: Hellboy
Film: Always watched film growing up, but the movie that got me invested in film as a specific way to tell stories? Hard to pick one, but Blade Runner is the first thing to come to mind. Unsure if it was the specific one that created that enjoyment, but nothing else is really popping out at me. Maybe Alien? Dunno about that one.