Oscars 2014: 10 Wealthiest Oscar Winners

Winning an Academy Award for best actor or actress can be a big career boost for a celebrity, especially financially.

Sandra Bullock, who is nominated for another Best Actress award for "Gravity," may earn at least $70 million from the successful box-office run of the film, sources tell The Hollywood Reporter.

She may already be among the wealthiest of actors who have won this prestigious award. At age 49, she is the youngest of the top 10 winners of the Best Actor and Best Actor award, according to research firm Wealth-X.

The 86th Academy Awards, hosted by Ellen DeGeneres, takes place on Sunday, March 2 on ABC.

Here's a list of the richest Oscar winners based on net worth, according to Wealth-X, and their Oscar victories:

1. Jack Nicholson, 76

(Photo by Kevin Winter/ImageDirect)1998: Best Actor in a Leading Role, As Good As It Gets

1984: Best Actor in a Supporting Role, Terms of Endearment

1976: Best Actor in a Leading Role, One Flew Over The Cuckoo’s Nest

(Getty Images)

2. Tom Hanks, 57

1995: Best Actor in a Leading Role, Forrest Gump

1994: Best Actor in a Leading Role, Philadelphia

(Photo by Kevork Djansezian/Getty Images)

3. Robert De Niro, 70

1981: Best Actor in a Leading Role, Raging Bull

(Photo by Evan Agostini/Invision/AP, file)1975: Best Actor in a Supporting Role, The Godfather: Part II

4. Barbara Streisand, 71

1969: Best Actress in a Leading Role, Funny Girl

5. Sean Connery, 83

1988: Best Actor in a Supporting Role, The Untouchables

6. George Clooney, 52

2006: Best Performance by an Actor in a Supporting Role, Syriana

7. Michael Douglas, 69

(Photo by Alberto E. Rodriguez/Getty Images)1988: Best Actor in a Leading Role, Wall Street

8. Anthony Hopkins, 76

(Photo by Jason Merritt/Getty Images for CW)1992: Best Actor in a Leading Role, Silence of the Lambs

9. Robin Williams, 62

Reuters1998: Best Actor in a Supporting Role, Good Will Hunting

10. Sandra Bull