I read it years ago and it is quite good, but not as deserving as Dostoevsky....
Of course it can't really be compared to Dostoevsky. The movie was made in the early fifties and has some flaws, but is enjoyable. Peter Ustinov as Nero turns in a remarkable performance. Robert Taylor is the Roman soldier, and, in stretching my memory, I think Deborah Kerr is in it. I would have to consult Wikipedia to be sure.
Some of the scenes are historically incorrect. Christians are being thrown to the lions in the Collessium, but this edifice wasn't built during Nero's reign. Nero's favorite trick was to set Christians ablaze, coated with tar, to illuminate the grounds of his golden palace for his guests' visible pleasure.
If you get through this book, read The Satyricon of Petronius Arbiter who is a character in both the movie and book. This is one of the world's first novels. He was known for his impeccable taste and subtle wit. Another one of Nero's tricks was to order a subject to commit suicide; then, Nero would inherit all of the suicide's wordly goods. Petronius Arbiter served a dinner for all his guests while slowing bleeding to death from slit wrists, enjoying the good conversation of friends. He had his wrists bound up so he wouldn't drift off into death quite so soon. He also had a beautifull vase which Nero had admired, so he shattered it, remarking this is one piece Nero wouldn't get. This is where we get our word arbiter, as arbiter of good taste.
Nero's mother, Agrippina, mudered the previous emperor, Claudius, by feeding him poisoned mushrooms (see the Masterpiece Theatre production, I Claudius and read about Nero in Suetonius' Lives of the Twelve Caesars). Nero, who had an incestuous relationship with his mother, finally got tired of her. He built a ship which would collapse after being in water for awhile, and sent Agrippina out in the ship; however, she was a good swimmer and managed to get to shore. So Nero, not being subtle, sent a couple of his praetorian guard to Agrippina, and they strangled her.
After the burning of Rome, which cleared out a lot of property Nero wanted so he could rebuild in a style suitable to his taste, Nero himself committed suicide with the help of a servant. In his last words, he mourned the fact the world was losing such a great poet and actor.
I read in the paper a few months ago where archeologists had discovered the buried remains of Nero's revolving dining room which turned so his guests would have a constantly changing view of scenery about his golden palace. The Collisseum was built right across from his palace, I believe in the reign of Titus.
I haven't touched on the religious aspects of the novel, but Nero did blame the burning of Rome on the Christians although it is probable he set it afire himself. Nero, to say the least, was not a nice person.
I prepare the more archaic form .....
Another book in the same genre ....
which is quite good: Ben Hur-a Tale of the Christ. It is also set in the Roman period and many will remember the movie with Charlton Heston and the featured chariot race. It was written by an American, Lew Wallace, who was the territorial governor of New Mexico before statehood.