Julie Eagleton was born in the UK, and is of English/Irish descent. As an actress, she has worked with directors such as Christopher Nolan (Inception), Woody Allen (Cassandra's Dream), Tom Hooper (The King's Speech), Joe Wright (Atonement), Stephen Frears (The Queen) and Paul Greengrass (The Bourne Ultimatum) amongst others. She has also worked with Tim Burton on three separate occasions: Charlie And The Chocolate Factory in 2005, Sweeney Todd: The Demon Barber Of Fleet Street in 2007, and Miss Peregrine's School For Peculiar Children in 2016.

Her TV work has included supporting roles in the mini-series, The Line of Beauty in 2006, and TV movies, The Chatterley Affair in 2006, Into The Storm in 2009, and The Special Relationship in 2010. Between 2012 - 2014, she appeared in 8 episodes of Primetime Emmy and Golden Globe award-winning series, Downton Abbey, in Seasons 3, 4 and 5. In 2014, she appeared in one episode of political spy thriller, The Honourable Woman.

In 2017, Julie worked on a successful Kickstarter campaign to fund the award-winning short film, Perplexed Music, directed by Mark McGann and starring his brother, Paul McGann, becoming one of its producers. The film about love, loss and rebirth, is based on a poem by Elizabeth Barrett Browning of the same name, and was released in 2018.

In the same year, she also produced the award-winning short film, Designated Caretaker Redux, directed by Frederick Keeve, and starring William Morgan Sheppard as Michael Chekhov in his last screen role. The film centres around a high school drama teacher's obsession with completing a film about Michael Chekhov, and losing touch with his family and his sanity in the process. The film addresses man's eternal struggle to maintain personal balance in life and art.

In 2017, Julie acted in the feature film, Stan and Ollie, a biographical film directed by Jon S. Baird. The film stars Steve Coogan and John C. Reilly as the comedy double act, Laurel and Hardy. In 2018, she was Executive Producer on the comedy short film: Paul Is Dead directed by George Moore, which was inspired by the 1960s bizarre rock & roll theory conspiracy theory surrounding Paul McCartney and The Beatles. In 2019 she produced her first feature film, The Accompanist, directed by Frederick Keeve. The love story set in the world of male ballet in Los Angeles was released in 2020 by Dark Star Pictures.

In 2021, Julie was Executive Producer and cast member in the short drama, Night and Day. Directed by Tim Fywell (The English Game). The film follows two sisters living in London in April 2020, a month into lockdown during the Covid-19 pandemic.

In 2022, she was Executive Producer on the Short Comedy film, Free Spirits, directed by George Moore. Starring BAFTA nominee, Spencer Jones, who plays a bashful vicar called upon to save a haunted nudist community from a prudish poltergeist.

In 2022, Julie played the role of Sarah Madden in feature film, The Godfather Buck, directed by Thomas J Churchill, and distributed by Gravitas Ventures. Two brothers who meet once a year at a cabin in Big Bear, uncover family secrets and lies when their stepbrother drops by for an evening, changing their lives forever.

In 2023, she produced the short film, Jimmy Comes Marching Home, directed by Frederick Keeve. Director, Frank Capra (Bart Shatto), does his best to try and persuade movie star and WWII war hero, Jimmy Stewart, badly damaged by the horrors of aerial combat in wartime service, to return to acting and star in in It's a Wonderful Life.

Julie's second feature film as a producer, The Accompanist Awakening, is now in pre-production and is due for release in 2024.

She is a proud member of WIF (Women in Film, LA) and PGGB (The Production Guild of Great Britain).