accord to hitchcock or truffaut interview and hitchcock tell truffaut that he consider the lodger a his first true film . a for me and i think the lodger be a brilliant film . hitchcock original end wasn not use and because ivor novello be a big star at that time . so a happy end be use instead . but hitchcock imply throughout the film that the lodger might be jack the ripper . although there be a happy end show in the film and still it be an open end . you can pick your choice . be he the avenger or not . there isn not a single evidence to prove that the lodger story about his past and his sister be true . so it be upto the audience to pick the choice . hitchcock camera shot be brilliant especially the scene where ivor novello be walk and chandelier be shake . no . 13 be common in hitchcock film . no . 13 be house no . where daisy live . we see the no . 13 on the front door when ivor novello character knock on the door in the beginning . in shadow of a doubt and we see joseph cotten character come out of no . 13 door . in psycho and we see car no . nfb 418. nfb stand for norman francis bates . add the number 4 plus 1 plus 8 equal 13. a for me and i like it . the version i saw be brilliant . it be the black and white version release by st. clair vision in 2005. i do not like video or film express version . but that just my opinion . i recommend this film for any hitchcock admirer .