Actor Arnold Schwarzenegger is marking a milestone today. The action film icon is turning 67.

Here are some things you might not have known about Arnie:

He was born in near Graz, Austria and immigrated to the U.S. in 1968.

He won the Mr. Olympia title seven times, and also holds the record for the youngest winner when he won his first title at the age of 23 in 1970.

He has a Golden Globe award. He won in the category for “Best Acting Debut in a Motion Picture” in the film “Stay Hungry” in 1977.

He really wants a “Twins” sequel and is excited that “Triplets” is in the works, adding Eddie Murphy into the mix.

Some other celebrities enjoying their birthday today include: “Friends” star Lisa Kudrow (51), “Brooklyn Nine-Nine” actor Terry Crews (46), two-time Oscar-winning actress Hilary Swank (40), funnyman Tom Green (43), “The Mentalist” star Simon Baker (45), actor Laurence Fishburne (53) and singer Kate Bush (56).