Sci-Fi movies in a minute :

With Avatar taking over the world and crazy special effects getting crazier, we've all fallen in love with sci-fi films all over again. Whether it's the 17 Star Trek films or the Terminator Vs Alf, science fiction films have been around since the birth of cinema. But how many can you name in a minute?

We think we've got them all, but if you spot any we've missed leave a comment here.