Den of Lions (Hungarian title: Oroszlánbarlang) is a 2003 film directed and written by James Bruce and produced by Daphne Lerner and Váradi Gábor.

It is a violent direct-to-video B movie, starring relatively famous actors like Stephen Dorff, Bob Hoskins and more.

[1] Mike Varga (Stephen Dorff) is an FBI agent with Hungarian roots and a gypsy origin.

For a new investigation, he is sent to Budapest to infiltrate the Russian mafia, get close to the brutal mafia boss Darius Paskevic (Bob Hoskins), and end his series of crimes.

However, Varga gets into trouble when he falls in love with Paskevic's daughter (Laura Fraser).