The Ruins

 (18)

This grisly but dim shocker recalls all those rickety low-budget 1950s genre B films but without their zest, but with plenty of added gore, including an on-screen double amputation. 

A formulaic tall tale of American college in which students fall victim to killer vines on top of an ancient Mayan pyramid, it is shaky drivel, strictly for horror-flick aficionados only.