I used to do that as well.. but then I learned something about me. Once I know the ending - I stop reading / watching.
I haven't and won't go see Secretariat or Titanic for that reason. The horse wins and the boat sinks. No point.
I even do that with my own stories - if I figure out the endings too fast - hey I'm good, no point in writing the rest out. Oh yeah - seriously. lol
SO - now I refuse to let myself skip to the end. That being said - in my excitement / anxiety I will skim during the dull bits. I seriously do NOT need to read about how you fold your clothes or what fabric they're made of - or how many friggen veins are in that leaf over there. O.o (good grief Anne Rice - stop it!)
Uhm.. I've digressed. Or maybe not...
Ok I'll step away from the mic now
lol