This isn't for children. There is a lot of foul language, and plenty of blood and gore, as you would expect from an R-rated film about a band of violent mercenaries fighting pirates and drug lords. If you want raw action, and aren't easily offended, then this will satisfy you.
The DVD has some interesting extras, including one deleted scene, a gag reel, and feature commentary from Stallone, himself!
I give the movie and its DVD release 3 out of 5 stars. It's entertaining, but nothing exceptional.