This is the 7535th most frequent Turkish word.
hakikaten
"Truly" or "indeed."
Here, 'hakikaten' is used to emphasize the speaker's genuine opinion or surprise about the beauty of the movie.
Hakikaten bu film çok güzelmiş.
Really, this movie is very beautiful.
In this sentence, 'hakikaten' serves to question the truthfulness or sincerity of the statement being made.
Hakikaten öyle mi düşündün?
Did you really think so?
In this context, 'hakikaten' acts as an interjection confirming the reality of the situation described—the pleasant weather.