Land of the Giants (1968)

Set in 1983, fifteen years into the future, a sub-orbital transport vessel named Spindrift embarks on a swift journey from Los Angeles to London. During its flight, the ship encounters a magnetic storm that propels it through a space warp to an enigmatic planet where everything is twelve times larger than on Earth. The Earth crew and passengers soon discover they are not alone; they are surrounded by colossal beings they refer to as "the Giants." Following the crash landing, the Spindrift is severely damaged, leaving its occupants stranded in this bizarre new world.