You can use the lists function to make lists of your favorite celebrities.
From your profile, go to lists. On the right is a button to make new lists. From there, customize it as you wish.
As for a news feed; IMDB information on celebrities and movies is updated by users like you and me. IMDB itself does not generate news content; they only keep links to it from other sites if a user adds it to someones profile.
The news and community section has general news announcements and press releases. But news for any individual celebrity is not frequent, at least not above the tabloid level.