Thought i'd ask then i realised how hard a question it is, lol. I think mine would have to be, in no particular order
1. Back To The future Trilogy
2. A Fistfull Of Dollars, For A Few Dollars More, The Good, The Bad And The Ugly
3. Star Trek 2 The Wraith Of Khan
4. Probably some of the 50's and early 60's Sci-Fi Classics ie Forbidden Planet, The War Of The Worlds, The Time Machine etc...
5. erm..... will have to come back to this one as cant think of a fifth at the mo, lol
whats your top five?
Having had a bit of time to think, I also love
The Terminator (original) , Aliens (special edition), The Abyss (Full Cut)
It is just so difficult, maybe i should have made it top 10 favorites, lol