Many believe that the 1970s decade changed the film and television industry.

With iconic films like The Godfather I and II, Star Wars: Episode IV, Jaws and Grease all released in the decade, it’s hard to argue it wasn’t a great time for the industry.

With great films come great actors and actresses. Here’s some of the most iconic movie stars of that decade and what they are up to now.

Olivia Newton-John Then

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Newton-John rose to fame in the 70s playing Sandy in hit film Grease.

Olivia Newton-John Now

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No longer a star of cinema, Olivia Newton-John has returned to her roots as an Australian singer. She has extensively toured in Asia. Her performance has come to Las Vegas, where she has a residency at The Flamingo resort.

 Mark Hamill Then

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Hamill was cast as Luke Skywalker for the Star Wars franchise, with the very first film Episode IV: A New Hope released in 1977.

Hamill went on to star in all three original films, a series that would change his life.

Mark Hamill Now

SAN DIEGO, CA - JULY 10: Actor Mark Hamill at the Hall H Panel for `Star Wars: The Force Awakens` during Comic-Con International 2015 at the San Diego Convention Center on July 10, 2015 in San Diego, California. (Photo by Michael Buckner/Getty Images for Disney) *** Local Caption *** Mark Hamill

Hamill reprised his role as Luke Skywalker in the 2015 film The Force Awakens.

Skywalker is set to have a part to play in the upcoming 8th episode, due to be released in 2017.

Goldie Hawn Then

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Hawn won an Oscar in 1970 for Best Supporting Actress for the film Cactus Flower, where she played Toni Simmons.

Goldie Hawn Now

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Hawn, pictured with longtime partner Kurt Russell, has set up the Hawn Foundation in recent years.

Now aged 70, Hawn had left life on screen behind but is set to star in a new action/comedy film with Amy Schumer in 2017.

Clint Eastwood Then

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Eastwood is a true 1970s icon. Starring in 16 films during the decade helped him cement his place as one of the greatest actors of all time.

His lead role in Dirty Harry was one of our favourites.

Clint Eastwood Now

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Eastwood has turned to directing in recent years and has seen huge success.

He has directed Oscar winning films including American Sniper and Million Dollar Baby.

Diane Keaton Then

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Keaton’s role in The Godfather trilogy as Kay is undoubtedly her most well known role.

The first film, released in 1972, was actually Keaton’s very first film acting job.