As you can see, we have the Warner Bros. shield amoeba with the banner,
as seen in one of the trailers for the 2001 film Osmosis Jones.

But the byline "An AOL Time Warner Company" is in a hard-to-describe font.
And I need to know what font the byline is in.

So if anyone wants to know what it is, please let me know ASAP.

Thank you and have a nice day!

Not only is it the font used for the byline in one of the trailers for Osmosis Jones,
but is also used for the opening credits to said film.