Both film versions of Solaris, though for vastly different reasons. Lem's original novel is super dry and hard sci fi, like most of Lem's work, which isn't my favorite kind of sci fi. Both films really delve into the fascinating psychological questions of the situation Kelvin finds himself in. The Tarkovsky version is the best, unsurprisingly, since Tarkovsky is the GOAT, but I also really enjoy the Soderbergh version with George Clooney. The latter is hollywoodized compared to the Soviet version, but still is a really interesting and gorgeous movie