って、面白い

X is interesting/funny, isn't it?

→ って
phrase Rare #35,553
X is interesting/funny, isn't it? って is an informal topic marker meaning “as for X” or “speaking of X.” 面白い can mean either “interesting” or “funny” depending on context.
JA: 日本語って、面白いね。
EN: Japanese is interesting, isn't it?

この映画って、面白い

Is this movie any good?

言葉って、面白い

Words are fascinating, aren't they?

トムって、面白いでしょ

Tom's a funny guy, isn't he?

トムさんって、面白いなのよ

Tom's actually a pretty funny guy.

トムって、面白い

Tom is a funny guy.