the novel offers some quite chillingly vivid accounts of Tunis and Cassino. Patrick Ryan served as an infantry and then a reconnaissance officer in the war. Throughout, the author's bitterness at the pointlessness of war, and the battle of class interests in the hierarchy, are common to the film, as are most of the characters (though the novel predictably includes many more than the film). In the novel, Patrick Ryan chose not to identify a real army unit. The officers chase wine and glory, the soldiers chase sex and evade the enemy. The model is a regular infantry regiment forced, in wartime, to accept temporarily commissioned officers like Goodbody into its number, as well as returning reservists called back into service. In both world wars this has provided a huge bone of contention for regular regiments, where the exclusive esprit de corps is highly valued and safeguarded. The name Musketeers recalls the Royal Fusiliers, but the later mention of the "Brigade of Musketeers" recalls the Brigade of Guards. In the film, the regiment is presented as a cavalry regiment (armoured with tanks or light armour, such as the half-tracks) that has been adapted to "an independent role as infantry". The platoon of the novel has become a troop, a Cavalry designation. None of these features come from the novel, such as the use of half-tracks and Transom's appointment as "corporal of musket", which suggests the cavalry rank corporal of horse. These aspects are most likely due to the screenwriter Charles Wood being a former regular army cavalryman. Filming Filming took place during the autumn of 1966 in the German state of Lower Saxony, at the Bergen-Hohne Training Area, Verden an der Aller and Achim, as well as the Province of Almería in Spain. Lennon, taking a break from the Beatles, was asked by Lester to play Musketeer Gripweed. To prepare for the role, Lennon had a haircut, contrasting sharply with his mop-top image. During filming, he started wearing round "granny" glasses (the same type of glasses worn by the film's screenwriter, Charles Wood); the glasses became iconic as the nearsighted Lennon mainly wore this particular style of glasses for the rest of his life. A photo of Lennon in character as Gripweed found its way into many print publications, including the front page of the first issue of Rolling Stone in November 1967. Beatles friend, and soon to be head