The Man Who Knew Too Much (1956 film)
The Man Who Knew Too Much is a 1956 suspense film about a family vacationing in Morocco who accidentally stumble onto an assassination plot and the conspirators are determined to prevent them from interfering. The film is a remake in widescreen VistaVision and Technicolor of the 1934 film of the same name.
Dr. Ben McKenna 
- Sorry we were gone so long, but we had to pick up Hank!
Hank McKenna 
- [to Louis] If you ever get hungry, our garden back home is full of snails. We tried everything to get rid of them. We never thought of a Frenchman!
Louis Bernard 
- [dying] A man... a statesman... is to be killed... assassinated in London. Soon... very soon. Tell them in London... tell them to try Ambrose Chapel...
- [to Drayton] You have muddled everything from the start, taking that child with you from Marrakesh. Don't you realize that Americans dislike having their children stolen?
- Jo: You know what I was just thinking? You know what is paying for this three days in Marrakech?
- Ben: Sure, me.
- Jo: Mrs. Campbell's gall stone.
- [both laugh]
- Jo: And you know the purse I bought in Paris? Philip's tarsal.
- Jo: So, what do you do?
- Louis: I buy and sell.
- Jo: I see. And what do you buy and sell?
- Louis: Whatever gives the most profit.
- Edward: Remember, you will only have time for just one shot. If you need another, the risk is yours.
- Rien: I don't take risks.
- A little knowledge can be a deadly thing!
- Alfred Hitchcock strikes the highest note of suspense the screen has yet achieved!
- James Stewart - Dr. Benjamin McKenna
- Doris Day - Josephine Conway McKenna
- Brenda De Banzie - Lucy Drayton
- Bernard Miles - Edward Drayton
- Ralph Truman - Inspector Buchanan
- Daniel Gélin - Louis Bernard
- Mogens Wieth - Ambassador
- Alan Mowbray - Val Parnell
- Hillary Brooke - Jan Peterson
- Christopher Olsen - Hank McKenna