Trivia: When Michael and Milo battle for the first time, you hear Milo repeatedly chant "Michael, Michael." It's probably my own cerebral connection, but I can't ignore the funny reference to the Lost Boys (1987) in which the main vampire (brilliantly played by Kiefer Sutherland) also chants 'Michael, oh Michael' to Michael Emerson (Jason Patric), Sam's (Corey Haim) brother, when Michael is slowly turning into a "sh*tsucking vampire" .
Trivia: When the Daily Bugle is shown with the main article of Morbius being apprehended for murder, in the top right corner of the paper you can read "Black Cat: Friend or Foe?" This is a reference to the antihero and frequent Spider-Man ally Black Cat. Sony had previously attempted to develop a movie featuring Black Cat and Silver Sable, which would have been called "Silver and Black." This could be Sony planting the seeds of bringing the character to screen, or it may just be an Easter egg.
Trivia: After the film's disappointing initial release, it became something of a meme online, with people making funny posts inspired by its poor reception. (Often with the humorous catchphrase "It's Morbin' time!" attached) The studio attempted to capitalize on this by re-releasing the film on 1,000 screens on Friday, June 3, 2022, hoping that it would get a second wind from its online infamy. This tactic backfired spectacularly, with the film only earning a dismal $300,000 over the weekend.
Trivia: The name of the ship where Morbius does his research is "Murnau", as in F.W. Murnau, a German film director whose movie "Nosferatu" (1922) is the first vampire film ever made.
Trivia: Spoiler alert! After the credits roll there are two extra scenes, one with Michael Keaton transported from the MCU, in a cell complaining about the food, and another with him in his Vulture costume from Spider-Man: Homecoming, suggesting teaming up with Morbius.
Trivia: When Martine is reading the Daily Bugle on the bus, the text in the upper right corner makes reference to the Spider-Man villain Chameleon.
Answer: He still had a compassionate side, the donated blood was for people who had blood diseases. The reason he did all this in the first place. As for animal blood, that's only for undead vampires, he was a living vampire, who needed specific fresh blood to combat his disease. Plus, vampires drinking animal blood was made up in movies and TV shows.