Sometimes we say that film leaves nothing to the imagination, where stage plays do leave a lot (much like reading books). On the other hand, if you have ever seen an old movie of Henry V (Shakespeare's play), you can't have forgotten it, it was a film made of a stage play -- deliberately at the beginning, then it shifts to more film like qualities, and ends up as a play. (It was the Laurence Olivier version from 1946 if you can find it). The more recent Shakespeare in Love did something similar.
How does that fit with the thought that film leaves nothing to the imagination?
Does the film version of a play do the same thing do you think?