You're like a character from a film.
sei CO-me un per-so-NAG-gio u-SCI-to da un FIL-m — stress on 'co-', 'nag-', 'sci-', 'film'. 'Personaggio' has four syllables.
An imaginative and romantic compliment — comparing someone to a film character implies they have an extraordinary, almost cinematic quality.
'Sei come' = you are like. 'Un personaggio uscito da un film' = a character who has stepped out of a film. 'Uscito da' = come from / stepped out of. This phrase implies the person is too good, too interesting, too vivid to be simply real.
Sembri uscita/o da un romanzo.
You seem like you've stepped out of a novel.
Literary version — implies depth and narrative richness
Hai qualcosa di cinematografico.
There's something cinematic about you.
More adjective-based — 'cinematografico' is a beautiful Italian word
Non sembri reale.
You don't seem real.
Extreme compliment — so extraordinary as to be almost fantastical
Italy's rich cinematic tradition — Fellini, Visconti, Antonioni — means that comparing someone to a film character is a genuine cultural compliment. Italian cinema is famous for its beautiful, complex, unforgettable characters. The comparison is the highest artistic praise.