The Howling. Poster of the 1981 movie and cover of the 1977 book
The Howling
Gary Brandner, 1977
movie vs book
Joe Dante, 1981

Karen White is a Los Angeles television news anchor who is being stalked by a serial murderer named Eddie Quist. In cooperation with the police, she takes part in a scheme to capture Eddie by agreeing to meet him in a sleazy porno theater. After a near deadly encounter with the serial killer, Karen is sent to a remote mountain resort whose residents may not be what they seem.

Gremlins 2: The New Batch. Poster of the 1990 movie and cover of the book novelization
Gremlins 2: The New Batch
David Bischoff, 1990
movie vs book   [NOVELIZATION]
Joe Dante, Chuck Jones, 1990

After the death of his owner Mr. Wing, the mogwai Gizmo becomes the guinea pig of scientists at a lab in the Clamp Center, a state-of-the-art highrise building in Manhattan, owned by eccentric billionaire Daniel Clamp. Gizmo is left in the office, where water spills on his head from a broken drinking fountain and spawns four new mogwai who then lock Gizmo in the vents.

The Man Who Fell to Earth. Poster of the 1987 movie and cover of the 1963 book
The Man Who Fell to Earth
Walter Tevis, 1963
movie vs book
Bobby Roth, 1987

Thomas Jerome Newton is a humanoid alien who falls to Earth from a distant planet, landing in New Mexico. Appearing as an Englishman, Thomas has arrived on Earth on a mission to bring water back to his home planet, which is experiencing a catastrophic drought. Newton swiftly uses the advanced technology of his home planet to patent many inventions on Earth.