They range from a lovestory starring a Hollywood actor, to a home grown tale of music triumphing over adversity, and from an IRA undercover agent intrigue to a Londonderry-based story of youthful angst.
Film fans may recognise the grounds from movies as varied as LoveStory, North By Northwest, The Age of Innocence and To Wong Fu, Thanks for Everything, Julie Newmar.
Despite some critics' concerns that this poignant film didn't portray John Nash 's real-life experiences honestly enough, there is no denying the artful manner in which Howard spins a tale that morphs from cold war drama to lovestory and then into everybody's favorite liet-motif: Triumph in the face of adversity.