how do you say "i watched (name of the movie!) it was so fun to watch. Your acting was so good!!"
Or something with the same context in Korean. Thanks!!

Question

Answer

i watched (name of the movie!) it was so fun to watch. Your acting was so good!!"

(Let's say the movie's title was 아가씨)
=> 나 아가씨 봤는데 너무 재미있더라. 네 연기 너무 좋았어! (informally to a friend)
=> 저 아가씨 봤는데 너무 재미있네요.  연기 참 잘하셨어요? (polite)

Answer

영화 잘 보고있어요. 너무 재미있게 봤어요. 연기 너무 잘 했어요.

Trans:
I watched your movie. It was really fun/interesting to watch. Your acting was great!