Look for files with the extension .MKV (Matroska). MP4 files can technically support dual audio, but MKV is the standard because it handles multiple codecs and chapter markers more reliably.

If you are determined to watch Apocalypto with a second audio track, consider these legal and ethical approaches:

This article is for informational purposes only. Downloading unauthorized dual audio copies of Apocalypto is copyright infringement. The film is owned by Icon Productions and distributed by Disney (via Buena Vista).

After analyzing all options, here is the definitive recommendation for experiencing Apocalypto: