Scriptwriter Sidney Howard wrote the screenplay based upon his 1934 stage adaptation of Sinclair Lewis' 1929 novel of the same name.His own heart beat intensified as he was frozen in terrorizing fear.A grenade explosion was followed by Tex's shout to Chris: "Blow he f--kin' claymore! Take the safety off, god-damnit!" The flashes of returned automatic machine gun fire momentarily lit up he jungle during the firefight, and the claymores detonated.The unnerved Letty imagined in her mind, via an inserted cutaway, an image of a white stallion (the "ghost horse") galloping up into the clouds - a frequent subjective vision in the film.They were assisted by Puss In Boots (voice of Antonio Banderas) and faithful companion Donkey (voice of Eddie Murphy), and reminded that they had to attend various functions that day.