Are these B-Films?
I know it's a matter of personal opinion so I'm seeing where some might draw the line.
Are these B-Films?:
Fantastic Voyage (1966)
https://www.imdb.com/title/tt0060397/reference/
Robinson Crusoe on Mars (1964)
https://www.imdb.com/title/tt0058530/reference/
Re-Animator (1985)
https://www.imdb.com/title/tt0089885/reference/
The Last Man on Earth (1964)
https://www.imdb.com/title/tt0058700/reference/
Journey to the Center of the Earth (1959)
https://www.imdb.com/title/tt0052948/reference/
The Day the Earth Stood Still (1951)
https://www.imdb.com/title/tt0043456/reference/
The War of the Worlds (1953)
https://www.imdb.com/title/tt0046534/reference/