The 'Pack Up' singer told Bang Showbiz that although music will always be her main passion, she found the appeal of the big screen impossible to ignore.
She said: "I've always enjoyed acting at school but obviously music is my priority right now.
"I'd love to be an arse-kicking hardcore lady, like a kung-fu fighter or something. I'm not sure if that comes through in my personality but it would be fun to play that character."
She added: "I've featured in some soundtracks in the past and I would love to do more. I love great soundtracks to movies.
"Quentin Tarantino always picks amazing soundtracks so I would like to do something for him or write a song for him."
Doolittle also offered advice to aspiring superstars who hope to follow her into the music industry or crack Hollywood.
"I think that if you want to make it in this business, you have to work really hard. It never really happens overnight.
"I think that if I hadn't started when I was so young then it would have taken me a lot longer to get good at it."
Doolittle recently played the UK's first live Facebook gig and signed to a leading modelling agency.
Watch the video for Eliza Doolittle's 'Skinny Genes' below: