In preparing and rehearsing for a role, actors break up their parts into a series of discrete "bits", each of which is distinguished by the dramatic event of a "reversal point", when a major revelation, decision, or realisation alters the direction of the action in a significant way. (Each "bit" or "beat" corresponds to the length of a single motivation or objective. The term "bit" is often mistranslated in the US as "beat", as a result of its pronunciation in a heavy Russian accent by Stanislavski's students who taught his system there.)