Welcome to the forum, english noon.
Your example is not very natural. We are more likely to say:
I have never seen that movie before.
The present perfect is frequently used for a situation that began in the past, and is somehow relevant to the present. The situation may or may not continue up to the present moment. Examples include:
I have lived in Prague for fourteen years/since 1998. - I am still living in Prague.
I have worked in Germany several times (, but now I live and work in Prague). - I am not still working in Germany.
Student or Learner