The Martian. Haven't seen the 3D version yet. Hoping to get around to it sometime. Watched the digital copy on AppleTV.
Also watched Apocalypse Now recently. I was advised that it has a soundtrack worth throwing a 7.1 system at. Wasn't bad at all.
Total Recall. BestBuy had a steelbook version, so I thought I'd pick it up, having never seen it before. OK movie. Lots of Arnie-type fun.
I'm intending to take my home theatre into 7.2.4 immersive sound as soon as I can afford it, so I'll be looking out for movies with Atmos and DTS:X soundtracks.