This is the 2276th most frequent Russian word.
иностранным
"Foreign"
The word "иностранным" here describes the noun "искусством" (art), signifying that the art is foreign or comes from another country.
Он всегда интересовался иностранным искусством.
He has always been interested in foreign art.
In this sentence, "иностранным" modifies the noun "языкам" (languages) and functions as an adjective describing the languages as foreign in nature.
Мы изучаем иностранным языкам в университете.
We study foreign languages at the university.
The term "иностранным" is used as an adjective to describe "кинематографом" (cinema), indicating that the cinema originates from another country or culture.