Hitler isn't in the movie ? Where do we see or read about him going to dinner with Bruno's family

We read about Hilter's dinner at Bruno's home several times in the novel, although it is important to note that the dinner took place before Bruno's family moved away from Berlin. Mother mentions the dinner in Chapter Five, citing they never should had the "Fury" come to dinner. On Page 93, Grandmother admonishes Bruno's father for his choice of dinner guests..... namely the Fuhrer. Lastly, and probably the most detailed look at the dinner comes in Chapter Eleven. If you're looking to reread for detail, I suggest this chapter.