i am interested in reading books about time travel. not theories of time travel, although i would read those too.
i want books in which time travel plays a prominent role.
madeleine l'engle's time quartet does this well, although its space/time travel.

something along those lines.
if you know any, please let me know.

Yeah, I was obsessed with time travel for awhile, and it had everything to do with Donnie Darko. There's a JG Ballard short story (someone travels back in time, kills a butterfly and alters the course of history forever) which I can't remember the name of right now, but it should be in any collection of his short stories, which are all very good.

Or there's always The Time Traveller's Wife?

A good theory based book is Black Holes, Worm Holes and Time Machines by JS Al-Khalili

the time machine by hg wells.

was that the one they made a movie based on?

i've never seen any of the films based on it, but there was one made in 1960, and another in 2002.