This is the 4853rd most frequent Russian word.
интересен
"Interesting."
In this sentence, 'интересен' is used as a predicate adjective describing the subject ('этот фильм'), structured with 'очень' for emphasis.
Этот фильм очень интересен.
This movie is very interesting.
Here, 'интересен' expresses interest and curiosity, linked to the indirect object ('меня') by a dative case.
Меня интересен вопрос истории.
I am interested in the question of history.
'интересен' is used to describe the subject ('этот подход'), coupled with an attributive reason ('своей уникальностью').