1. Creation of Adam Vs E.T & Bruce Almighty
Some Trivia on the E.T poster: This poster idea had been suggested by Steven Spielberg and who was inspired by Michelangelo’s The Creation of Adam. John Alvin, who can be called one of the Greatest Movie Poster Artists, used his daughter, Farah Alvin, as the human hand model.
You can also see a few other “inspired images”.
2. Moses Vs Ten Commandments
This is not so much of an “inspiration”… But, IMDB states
“Charlton Heston was chosen for the role of Moses by Cecil B. DeMille because he bore a resemblance to Michelangelo’s statue of Moses in Rome.”
I have seen some movie poster resembling La Pieta, but am not able to recollect it.