Hogatha says to Gargamel "Well, this could be a start of a beautiful friendship", similar to Casablanca (1942).
After Smurfette wishes Grouchy to cheer up, he says "Wocka Wocka" three or four times, which is a reference to The Muppet Show (1976).
First appearance of Hogatha, one of the earliest characters created by Studio Peyo for the cartoon series.
Jokey's line, "The only thing to fear is fear itself," is based on a famous line spoken by U.S. President Franklin D. Roosevelt during his first inauguration speech in 1933.
This story also appears in the Smurf comic books as "Hogatha's Talisman", published in Schtroumpf magazine.