I’ll be this is a very widely recognized screencap from Re-Animator (1985). The girl on the table is played by the awesome scream queen Barbara Crampton (b. 1958) (you can follow her on Twitter here!). The image first appeared on the tumblr The Nihilistic Cinephile and is a reblog from this 25 November 2013 post at Infernal Wonders.
Och, Reanimator. *shakes head*
Neither my favourite movie nor my favourite set of Lovecraft stories, tbh. And if I recall correctly, Howard wasn’t that fond of it himself, either.