Love's Labour's Lost is a 2000 adaptation of the comic play of the same name by William Shakespeare, directed by and starring Kenneth Branagh. It was the first feature film to be made of this lesser-known comedy. Branagh's fourth film of a Shakespeare play (he did not direct the 1995 "Othello", although he did play Iago), "Love's Labour's Lost" was a box-office and critical disappointment.
Kenneth Branagh has directed other film that was adapted after Williams Shakespeare.
We know he directed Love's Labor Lost. We can't be so sure its the only film he directed that was of Shakespeare play. Othello was the fourth but he didn't direct. He may or may not be a director in the other two not mentioned.