Not really, not with movies. That might be down to me watching a lot of 1 hour 45 minutes movies or longer as an older kid (10-12, early teens), while the majority of movies I watch now are ca 1 hour 30 minutes or less.
I actually think I had an easier time watching longer movies back then than I do now. These days I feel like about an hour and a half is enough for one sitting.
But I have definitely noticed something similar with books. Books I loved as a kid now are short and very quick to reread, and the scenes that seemed so descriptive to me then, are less so now. I noticed this particularly with one book (Det kom et skip til Bjørgvin in 1349).