"Rock My World" - a much better title than "Global Heresy" - tells of a stodgy English Lord and Lady (O'Toole & Plowright) who, in need of cash, play butler and maid in their country mansion to an American rock band on retreat. Most of the comedy in this earnest little "sleeper" comes from the obvious class/culture clashing as the story manages warmth and poignant moments with criss-crossing subplots while keeping the rock music to a minimum. Silverstone, who occupies the entire VHS cover, is little more than a prop with O'Toole and Plowright getting the lion's share of screen time. A slow starter which is a tad corny around the edges, "RMW" is probably suffering from under-marketing as the minimal interest in the film represented by this website is out of proportion to the film's potential mass appeal. Good stuff for PG-13's (language & drugs) and up. (B-)