Hamlet, by a large margin.
William Shakespeare died in England in 1592. He was one of the most influential story tellers of all time.
At the time of writing this, Romeo and Juliet with Hailee Steinfeld and Douglas Booth has not yet been released. According to IMdb, film versions of Hamlet and King Lear are in the pre-production stage. The most filmed Shakespeare play recently has been Much Ado About Nothing, notably Joss Whedon's film version.
Romeo and Juliet Romeo and Juliet was originally a play by the great English playwright, William Shakespeare, who lived from 1564 to 1613. There have been several, more or less straight versions of the play adaped on film, most notably: Romeo and Juliet, filmed in 1936 - directed by George Cukor and starring Leslie Howard and Norma Shearer. Romeo and Juliet, filmed in 1968, directed by Franco Zeffirelli, starring Leonard Whiting and Olivia Hussey. Romeo + Juliet, filmed in 1996, directed by Baz Luhrmann and starring Leonardo DiCaprio and Claire Danes. Other movies which are based on Shakespeare's play but have a change of location and time setting include: West Side Story High School Musical. The film Shakespeare in Love is a fictionalised account of how Shakespeare came to write the play.
William Shakespeare was alive during the Elizabethan period. He was the most famous playwrite of his time.
William Shakespeare was an English poet, and he is the most famous one of all time.
The story Oliver Twist was written by Dickens in 1838, 220 years after Shakespeare died. The story of Cinderella is from Perreault's Fairy Tales, published in 1697, 81 years after Shakespeare died. Pocahantas was a real person who died in 1617 the year after Shakespeare did. However the famous story of her saving the life of John Smith was not told by Captain Smith until 1616, by which time Shakespeare was retired and on his deathbed. So basically Shakespeare could not have dramatised these stories and in fact he did not.
I don't know how you could research this topic without, first, making a list of all the professional theatre companies in the world, and all the school and university and community theatre groups and then asking every one of them "Which Shakespeare plays have you presented?" This would take a long time and substantial funding. It might be easier to look at which are Shakespeare's most filmed plays and make a guess that the plays most filmed are the plays most staged. I think you will find that the most filmed plays are the tragedies Hamlet, King Lear, Macbeth and Othello. However, school groups are less likely to try Othello (too sexy) or King Lear (all about old people) and are more likely to stage Romeo and Juliet (about teenagers) or one of the comedies (fewer dead people), especialy Midsummer Night's Dream, which seems like a favourite for amateurs. Even the Beatles tried it out!
The most popular actor in Shakespeare's company was Richard Burbage. Burbage was recognized as the second-most famous actor in London at the time after Ned Alleyn. Shakespeare wrote all his leading roles after 1594 for Burbage to play.
Queen Elizabeth the I
Most of them, at some time or another.
Elizabeth I was queen at the time that Shakespeare was born and continued until he was 39. For the last 13 years of his life, James I was king. Elizabeth was queen for three-quarters of Shakespeare's life.
Latin was the language which formed most of the curriculum in Shakespeare's day. The students spent most of their time translating Latin texts.