I have an unusual problem.i can't recall details of films/tv programmes i watch and it annoys me!?

whenever i am at social gatherings and people start talking about films and tv etc i feel stupid because more often than not i'll know ive seen the film/show they are talking about and yet i can't recall hardly any events from it, or quotes or whatever.i feel like a boring person because in the other person's eyes they may be thinking 'does this girl actually watch anything?' it's so infuriating, how can i sharpen my memory? i do have low self esteem so maybe when i watch things my mind isnt entirely focused on it as it is instead focussing on negative thoughts about myself.this is my theory.how do i improve my memory? who else has this problem??? i feel like a freak.