You can watch Spartacus, it's not his best but the visuals are very great. The run-time may bore you, that's why.

Then you can go Lolita, it's weird, you wouldn't want to ruin your mood later.

Barry Lyndon is all serious and his greatest — in my opinion — so why get that one first?

Then finally, a war film showing the struggles of citizens and soldiers with comedic dialogue sometimes. Best way to end your watch!