Hello Dutch speakers. In English, you can say for example : "I have already watched (and not I already watched) the movie. It's exciting"?

In Dutch have you to say: " Ik heb de film gezien. Die is spannend" or "Ik zag de film. Die is spannend" ? or are both correct ?
Maybe the rules are less exacting than the English ones.
Thank you in advance.
Update: Sorry, I forgot the word "al"
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