Vista Group chief executive officer Stuart Dickinson says the company is comfortable with its aspirations. (Image: Supplied)A weaker New Zealand dollar could deliver a $2 million opportunity for cinema software company Vista Group, which upgraded its full-year revenue guidance on Monday in response. Originally posting revenue guidance of $176m to $182m, it now estimates revenue will be $179m-$184m by the full year.Vista chief executive Stuart Dickinson told BusinessDesk a weaker-than-expected NZ dollar was responsible for much of the increase, but the company’s strong performance, particularly in moving clients into its new Cloud system, also played...