Orlando Bloom admits to Cate Blanchett that he had a crush on her during 'Lord of the Rings' filming

Before Katy Perry, Orlando Bloom had his eye on another big star. 

On Monday's episode of The Late Late Show with James Cordenwhich was taped in London, the 41-year-old actor joined Cate Blanchett on the guest couch and confessed that he had a huge crush on her while the two were filming The Lord of the Rings.   

When asked what his first impression of Blanchett was when she was playing Galadriel and he was portraying Legolas in LOTR, Bloom admitted, "I can’t think -- I had such a crush. I had the biggest crush on you."

Taken aback by the confession, Blanchett tried to give Bloom an out, saying, "Well, it was your character!" 

Bloom stuck to his story, exclaiming, "No, it was me!"

Bloom noted that he was about 21 years old at the time of the filming and was intimidated by Blanchett, more than five years his senior. "What was I, 110?" the 49-year-old actress quipped.

The crush wasn’t mutual, but that may just be because Blanchett didn’t know who Bloom was for a large portion of her three weeks on set.

"I didn’t recognize you, because the first time I saw you, you had hair -- like Fabio hair and blue eyes," Blanchett recalled. "And then I just saw you -- who is this really cute guy out of drama school -- and I didn’t put two and two [together]."

Bloom chimed in, "And I was just walking around spying on her from the corner of the room -- in a non creepy way."

While Blanchett may not have been swooning over Bloom, someone else was -- Corden’s mother, Margaret. With TheLate Late Show filming all week in London, the host's family was in attendance to show their support. While Corden’s dad, Malcolm, was adorably filming the televised program from his seat, his mom was hanging with Bloom.

"She’s backstage with Orlando Bloom. Well he’s on her list," Malcolm said of his wife. "Mom and I have been married so long we both have these lists of celebrities we’d be allowed to keep company with, should our paths ever cross. I believe in America they call it a hall pass."

While Bloom was feeding Margaret fruit while lounging in a robe, Malcolm revealed his real reason for being so cool with the arrangement. "I’m fine with it because Cher’s going to be here tomorrow," he joked. "She’s on my list."

Another girl going gaga for Bloom is Perry, his on-again, off-again girlfriend.

"They know each other’s patterns and the communication between them has improved, so their relationship is thriving," a source exclusively told ET last month. "They are happier than they've ever been and feel in time they will be ready to be more public about their love for one another and can plan for a future."

The source continued: "They are talking about a future wedding, but they are taking it slow."

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Katy Perry and Orlando Bloom together
BEVERLY HILLS, CA - FEBRUARY 26: (EXCLUSIVE ACCESS, SPECIAL RATES APPLY) Singer Katy Perry (L) and actor Orlando Bloom attend the 2017 Vanity Fair Oscar Party hosted by Graydon Carter at Wallis Annenberg Center for the Performing Arts on February 26, 2017 in Beverly Hills, California. (Photo by Dave M. Benett/VF17/WireImage)
BEVERLY HILLS, CA - FEBRUARY 26: (EXCLUSIVE ACCESS, SPECIAL RATES APPLY) Singer Katy Perry (L) and actor Orlando Bloom attend the 2017 Vanity Fair Oscar Party hosted by Graydon Carter at Wallis Annenberg Center for the Performing Arts on February 26, 2017 in Beverly Hills, California. (Photo by Dave M. Benett/VF17/WireImage)
NEW YORK, NY - NOVEMBER 29: Orlando Bloom and Katy Perry attend the 12th annual UNICEF Snowflake Ball at Cipriani Wall Street on November 29, 2016 in New York City. (Photo by Kevin Mazur/Getty Images for UNICEF )
NEW YORK, NY - NOVEMBER 29: Orlando Bloom and Katy Perry attend the 12th annual UNICEF Snowflake Ball at Cipriani Wall Street on November 29, 2016 in New York City. (Photo by Jason Kempin/Getty Images for UNICEF)
MIAMI, FL - MAY 22: (EXCLUSIVE COVERAGE)Orlando Bloom and Katy Perry are seen at Miami International Airport on May 22, 2016 in Miami, Florida. (Photo by Gustavo Caballero/GC Images)
MIAMI, FL - MAY 22: (EXCLUSIVE COVERAGE)Orlando Bloom and Katy Perry are seen at Miami International Airport on May 22, 2016 in Miami, Florida. (Photo by Gustavo Caballero/GC Images)
CAP D'ANTIBES, FRANCE - MAY 19: Musician Katy Perry and Actor Orlando Bloom attend the amfAR's 23rd Cinema Against AIDS Gala at Hotel du Cap-Eden-Roc on May 19, 2016 in Cap d'Antibes, France. (Photo by Gisela Schober/Getty Images for amfAR )
BEVERLY HILLS, CA - JANUARY 10: Actor Orlando Bloom (L) and singer Katy Perry attend The Weinstein Company and Netflix Golden Globe Party, presented with DeLeon Tequila, Laura Mercier, Lindt Chocolate, Marie Claire and Hearts On Fire at The Beverly Hilton Hotel on January 10, 2016 in Beverly Hills, California. (Photo by Kevin Mazur/Getty Images for The Weinstein Company)
BEVERLY HILLS, CA - JANUARY 10: Orlando Bloom and Katy Perry attend The Weinstein Company and Netflix Golden Globe Party, presented with DeLeon Tequila, Laura Mercier, Lindt Chocolate, Marie Claire and Hearts On Fire at The Beverly Hilton Hotel on January 10, 2016 in Beverly Hills, California. (Photo by Kevin Mazur/Getty Images for The Weinstein Company)
SANTA MONICA, CA - APRIL 10: (L-R) TV personality Conan O'Brien, actor Orlando Bloom, host J.J. Abrams and singer Katy Perry attend Coach's 3rd Annual Evening of Cocktails and Shopping to Benefit the Children's Defense Fund hosted by Katie McGrath, J.J. Abrams and Bryan Burk at Bad Robot on April 10, 2013 in Santa Monica, California. (Photo by Stefanie Keenan/Getty Images for Coach)
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