The film blueprint is prob 'It Happened One Night'(Capra again),as it has almost all the elements necessary for a romantic comedy(boy meets girl,boy and girl fight,boy and girl face hardship together,friends or parents get in the way,boy and girl make up and live happily ever after).btw,one of my favorites is The Heartbreak Kid(with Charles Grodin;written by Neil Simon,directed by Elaine May).Very unconventional romantic comedy for it's time(early 70s).Heck,even unconventional today(Jewish boy marries Jewish girl,she begins to annoy him,he meets shiksa on honeymoon,dumps new wife,then chases new love interest,marries her...but is he happy in that last scene...everyone sees thru his bullshit(including two kids)...how long will the new wife and her family put up with him...when does his new wife dump HIM...why does he hum the song from his first wedding...).I loved it.