LOST CONTINENT (1951) - The movie does not have a T-Rex. (Do the Triceratops and Bronto fight?)
THE LOST WORLD (1925) - This dino depicted here does not attack London, it is actually the Bronto.
THE BEAST WITH A MILLION EYES (1955) - The Beast looks nothing like this, nor does it have a million eyes. (However that could suggests it power to take control over living things, seeing life through their eyes.
Any other examples?