The 38-year-old actress - who stars alongside Harrison in 'Indiana Jones and the Kingdom of the Crystal Skull' - always admired Harrison's portrayal of the adventurous archaeologist, but has developed a full-blown crush on him since they started working together.
She told Empire magazine: "I was such a fan of the 'Indiana Jones' movies, I grew up on them. I was completely in love with Harrison Ford, and I still am! He's a hottie, and has definitely stood the test of time.
"It's so much fun doing this film, I've been having a ball. It's like a family, everyone is so welcoming. It is a really happy set to be on."
Last week, a film extra revealed Cate will play an evil interrogator who tortures Jones in a bid to discover the whereabouts of a priceless skull.