Harrison Ford became a superstar through a combination of talent, hard work, and luck.

He started his acting career in the early 1960s, appearing in small roles on television and in films. 

In 1973, he had a breakout role in the film American Graffiti, which was directed by George Lucas. 

This role helped to establish Ford as a rising star in Hollywood. 

Here are some of the factors that contributed to Harrison Ford's success as a superstar: 

1. Talent: Ford is a talented actor with a natural charisma. 

2. Hard work: Ford is a hard worker who is dedicated to his craft.  

3. Luck: Ford has had some lucky breaks in his career.  

Here are some of the factors that contributed to Harrison Ford's rise to stardom: 

1. His natural charisma and screen presence. Ford has a natural ability to connect with audiences. 

2. His talent as an actor. Ford is a talented actor who can convincingly portray a wide range of characters.