Who Framed Roger Rabbit
Back to the Future trilogy
The Princess Bride
Good pics. The Princess Bride and Blade Runner are my all time favorites.
In fact, the 80s are by far my favorite decade for movies, so it's a loooong list for me.
The Indiana Jones trilogy
the Star Trek movies of the 80s, most of all The Wrath of Khan
Henry V (the Kenneth Branagh film)
Conan the Barbarian
The Last Starfighter
the Mad Max trilogy
pretty much anything John Carpenter made, but especially The Fog, Starman, Prince of Darkness and In the Mouth of Madness (that last one is from the 90s)
kid adventure films like Monster Squad, Goonies, Explorers, Flight of the Navigator
pretty much anything by Michael Mann, most of all Manhunter, but also Thief, The Keep and Last of the Mohicans (that last one from the 90s)
Adventure in Babysitting
Tim Burton's Batman
Disney had some its best and most underrated films in the 80s, like the Black Cauldron and The Great Mouse Detective
That's not a complete list, but it will do for now.