my understanding is that "DP" (depersonalization) and "DR" (derealization) are sepperate but often occur together..

depersonalization being that ones body doesnt feel like it belongs... not to you, like you are out of place, and not in the body... more of an altered sense of self...

and derealization being more of an outward altered perception of things surrounding the self becoming unreal, unfamiliar...

i usually experience it together but i think i have read somewhere that some experience one or the other separate from each other..?

the movie thing is super annoying... especially when you start paying attention to it and the other symptoms increase... but i guess thats why i have a hard time remembering anything at all because if i was remembering how strange i feel constantly then i would pull all my hair out and climb a tree and hang upside down naked throwing feces at passing vehicles

its super freaky... just have to try to remain calm and like AC said pull your attention to other things...
reminding myself that its normal reaction to severe axniety and stress and things helps a little... and also that its not going to really hurt us as much as it feels like we are losing our minds... for me if i let the attack over take me it gets worse and can spiral way out of my control... i've had really crazy effects.. like losing my eye sight during this... not being able to walk or see or talk.. blablablabla.... but i am really messed up in the head so i hope that you're not experiencing such severity of symptoms... it super sucks...

i dunno if those conversion type symptoms come from the dp but i always seem to be highly dissociated when it has happened...

definitely make notes of these experiences since you might forget what it feels like after the affects go away.. and try to talk to T about it