In writer / director Petr Jäkl's 1400s-based true-tale actioner "Medieval" Ben Foster (always solid) is warrior knight Jan Zizka who under political king-maker Michael Caine (poor) becomes central to a grand European power struggle playing out in brutal fashion around in & Prague between the noble likes of Matthew Goode, Til Schweiger (both excellent under-rated actors), Sophie Lowe (terrific) & Karel Roden. Bloody violent battles flow (particularly between Foster & barbarian nemesis Robert Møller) but Jäkl's screenplay becomes so confusing & bogged down that there's no way this was going to be a new "Gladiator". Disappointing, considering it's fine cast.