What are the most profitable movies of all time? No, it's not 'Titanic' or 'Avatar.' We're not talking the highest grossers, but rather the ones that got the most bang for their buck. Over at CNBC.com, there's a list ranking the most profitable movies of all time by comparing their budget to their gross revenue. For example, let's take 'Avatar.' The film took in a whopping $2.8 billion worldwide, but its budget sits at a hefty supposed $300 million, making the film's return on investment only about 933 percent.

Sounds like a lot, right? Well, not compared to the film that holds the 15th position on this list. With a $111 million budget and $1.1 billion to show for it, 'The Lord of the Rings: Return of the King' comes in with an impressive 1,008 percent return on investment. From there we've got 'Mrs. Doubtfire,''There's Something About Mary,' and 'The Hangover' followed by 'Jaws,''Ghost' and 'Home Alone.' Next up is 'The Passion of the Christ,''American Beauty' and 'Star Wars.'
Finally, the first to crack the top five is 'Grease,' which boasts a mere $20 million budget with $394 million in returns. That puts its return on investment at 1,975 percent. 'Pretty Woman' crossed the 2,000 percent point with an ROI of 2,013 percent thanks to its $463 worldwide intake on a $23 million budget. Number three on the list is everyone's favorite indie underdog, 'Slumdog Millionaire.' That one was made for just $15 million and not only went on to collect award after award, but $378 million at the box office and a 2,520 percent ROI, too.

It's the number two film, 'E.T.,' that really takes things to another level. 'E.T.' takes 'Slumdog' by an astonishing 500 percent, courtesy of its $25 million budget and $793 million haul. But even with a 3,172 percent ROI, it's still light years away from the most profitable film of all time. That would be 'My Big Fat Greek Wedding,' which boasts a 6,150 percent return on investment thanks to its measly $6 million budget and $369 million in earnings. So this is why Nia Vardalos got the OK to make junk like 'I Hate Valentine's Day.'
My Big Fat Greek Wedding
PG2002
Based on 29 critics

A woman (Nia Vardalos) wants her family to accept her true love (John Corbett). Read More

The Lord of the Rings: The Return of the King
PG-132003
Based on 41 critics

Frodo and Sam march toward Mount Doom while Gandalf prepares for the final battle for Middle Earth. Read More

September 24, 2016
7:00pm
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The Passion of the Christ
R2004
Based on 43 critics

Jesus (Jim Caviezel) endures the agony of his final 12 hours. Read More

Jaws
PG1975
Based on 19 critics

A New England police chief, a shark hunter and a scientist have a showdown with a huge white shark. Read More

September 19, 2016
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Pretty Woman
R1990
Based on 17 critics

A corporate raider (Richard Gere) hires a hooker (Julia Roberts) to act as a business escort. Read More

September 22, 2016
8:30pm
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Slumdog Millionaire
R2008
Based on 36 critics

Flashbacks reveal how a poor young man (Dev Patel) winds up on a popular TV quiz show. Read More

There's Something About Mary
R1998
Based on 29 critics

A remarkable woman (Cameron Diaz) attracts assorted admirers (Matt Dillon, Ben Stiller). Read More

September 19, 2016
7:30pm
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Paranormal Activity
R2007
Based on 24 critics

A couple set up video cameras throughout their home to capture evidence of a haunting. Read More

Ghost
PG-131990
Based on 17 critics

Slain yuppie (Patrick Swayze) reaches his lover (Demi Moore) with psychic's (Whoopi Goldberg) help. Read More

The Hangover
R2009
Based on 31 critics

After a wild stag party, three groomsmen must find their missing pal before his wedding. Read More

Home Alone
PG1990
Based on 9 critics

A left-behind boy (Macaulay Culkin) battles two burglars (Joe Pesci, Daniel Stern) in the house. Read More

November 25, 2016
7:00pm
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American Beauty
R1999
Based on 33 critics

A man's (Kevin Spacey) midlife crisis includes a crush on a teen. Read More

Mrs Doubtfire
PG1993
Based on 16 critics

Estranged dad (Robin Williams) plays nanny to be with his kids. Read More

Grease
PG1978
Based on 15 critics

1950s good girl (Olivia Newton-John) and greaser (John Travolta) try to be like each other. Read More

September 26, 2016
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categories Movies, Cinematical