These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Alternative Character Interpretation: Obviously Brutus, but also Caesar. Is he a skeptic who refuses to pay heed to the soothsayer (see Arbitrary Skepticism below) or a highly superstitious figure who refuses to "beware" the Ides of March because it would be challenging fate and willingly goes to his destiny, only showing sadness at discovering Brutus among his killers? Or is he just too arrogant to pay heed to any warning of danger?
Family-Unfriendly Aesop: The play's 'message' can easily be read as "Democracy is bad because people are sheep," given all the scenes showing how quickly and easily the public's loyalties can change and be manipulated: Act I, Scene I, as well as their rapid switch of loyalties from Caesar to Brutus and back to avenging Caesar following the assassination. Of course, in Shakespeare's day this wouldn't have been a family-unfriendly aesop, as democracy didn't catch on for another few centuries.
The point is Rome was already beyond healing before the assassination attempt, this desperate last-minute action done by a mix of opportunists and led by a Well-Intentioned Extremist proves too little and too late. The play in later eras, along with Coriolanus, was often used by left-wing and liberal artists to warn against decay and corruption of government and civic society. Orson Welles' anti-fascist version of Caesar was one among many examples that showed, how Brutus was the Tragic Hero of democracy.
Ho Yay: Tons of it, especially between Brutus and Cassius. Also, Brutus tells the plebes at the forum that he has killed "my best lover". After Cassius commits suicide, one of his generals also kills himself because of how much he loves his commander (Cassius's likeability is something of an Informed Ability). Though back in Shakespeare's time, "lover" actually meant "friend".