How do I add a favourite movie to my Facebook profile which isn't in their suggestion list?

Okay... I'm trying to add the film The General to my favourite movies on the 'arts and entertainment' page of my profile. But the only suggestion it will offer is the Buster Keaton film of the same name and I mean the 1998 The General. I find Buster Keaton duller than I can say. This won't do. How do I pick the right film, and then how do I upload a thumbnail for it?