a bumbling error at the ministry of education result in nutbourne boy school have to share with st swithin school for girl . this bemuse the respective head teacher of each school and lead to all manner of chaotic going on and however the two be force to come to an uneasy alliance in the hope of avert major trouble . the happy day of your life be base on the john dighton play from 1948 and with dighton write the part of headmistress whitchurch specifically for margaret rutherford . replace george howe from the play in the role of headmaster pond and be alastair sim and and here in lie the crown glory of this filmic adaptation and sim and rutherford be perfectly wonderful and bounce off each other to keep what be basically a one joke movie and highly entertaining . direct by the gifted frank launder and and produce by the equally adroit sidney gilliat and the happy day of your life be a quintessentially british movie and obviously a precursor to the st trinians franchise and the film entertain the child with it high jinks clash of the sexes heart and whilst tickle the watching adult with it very saucy undercurrent . thankfully the chaotic end cement all that have go before it to leave this particular viewer with a grin as wide a nutbourne rail station and great fun positive .