Kind Hearts and Coronets is perhaps the best (and best-loved) of Alec Guinness's English Ealing comedies. Guinness is in superb, droll form as he plays eight different members of the D'Ascoyne clan. Louis (Dennis Price), the black sheep of the wealthy family, must murder all the heirs in order to inherit the D'Ascoyne fortune. You'll be mesmerized as the brilliant Guinness disappears into his various eccentric roles.
This movie is quite hilarious, and yet, because it deals with murder, children would perhaps be frightened. (I know I would have been! But then, when I was little I was scared of the scarecrow in The Wizard of Oz! LOL) If I remember correctly, there are no gruesome scenes.
It is amazing to see Alec Guinness play eight different people. I won't ruin the film for you by giving any more details!
As always, use your own discretion. Image from Amazon.com.