I (re-)watch a fair number of movies. Much more fun as you don't have to pay attention. Also, aren't focused on tracking the story line as you already KNOW it!
Entertaining, however, as you are free to notice all of the blemishes; the "man behind the curtain", so to speak.
Doing so with the Jurassic Park trilogy, tonight. First scene "accidentally" exposes the underside of Velociraptor cage -- made to look like it is built of tough steel! Except, the bottom is obviously made of WOOD. Complete with *tiny* casters -- hardly sufficient to support the weight of that "metal" cage AND an adult dinosaur...
Ah, well... I've found worse in other flicks so I shouldn't be TOO disappointed...