Merantau is the prequel to Raid and Raid 2, easily two of my favourite action films of all time. The start of that Iko Uwais also features in this and it was also directed by Gareth Evans.
Because it's the first one, it's not as good as the Raids but the fight choreography is still really top notch. There is some noticeable wire work but there's also some wow moments, my favourite being a clever and painful way of stopping a guy from jumping on you.
If you're a Raid fan try to dig this out. I did find one rip on youtube.