Many famous actors have played Mark Antony and set a high standard. Here's Marlon Brando's monumental version, for instance:
I have never acted on the stage so the worth of my opinions is commensurate with my experience. Nor have I ever been on a film set or in a recording studio. So, with the impudence that comes of having nothing to lose, let me offer my alternative interpretation. I feel that Mark Antony should not be so angry because that would get him assassinated too. Who would openly sympathise with somebody who had just been assassinated? There's more sadness and compassion and subtlety in the speech than anger. He has to win the crowd over gradually. But judge for yourself.
"The Ides of March" was painted by Vincenzo Camuccini
If you have tears, prepare to shed them now.
You all do know this mantle: I remember
The first time ever Caesar put it on;
'Twas on a summer's evening, in his tent,
That day he overcame the Nervii:
Look, in this place ran Cassius' dagger through:
See what a rent the envious Casca made:
Through this the well-beloved Brutus stabb'd;
And as he pluck'd his cursed steel away,
Mark how the blood of Caesar follow'd it,
As rushing out of doors, to be resolved
If Brutus so unkindly knock'd, or no;
For Brutus, as you know, was Caesar's angel:
Judge, O you gods, how dearly Caesar loved him!
This was the most unkindest cut of all;
For when the noble Caesar saw him stab,
Ingratitude, more strong than traitors' arms,
Quite vanquish'd him: then burst his mighty heart;
And, in his mantle muffling up his face,
Even at the base of Pompey's statua,
Which all the while ran blood, great Caesar fell.
O, what a fall was there, my countrymen!
Then I, and you, and all of us fell down,
Whilst bloody treason flourish'd over us.
O, now you weep; and, I perceive, you feel
The dint of pity: these are gracious drops.
Kind souls, what, weep you when you but behold
Our Caesar's vesture wounded? Look you here,
Here is himself, marr'd, as you see, with traitors.