Give him a gun and a big knife, and you can be pretty sure that John Rambo can take on any enemy. Resurrect him 20 years after his last adventure though and you have to wonder if he’s really up to the task of a modern-day fight in the jungle. Sylvester Stallone‘s super soldier is back this week on DVD, joined by the dramas Cassandra’s Dream and Grace Is Gone, plus a collection of Eddie Murphy‘s funny films.