Taylor Swift has dabbled in acting before, but rumor has it she might have landed her biggest role yet. If the rumor proves true, Swift will star in a spy film called 'The Secret Service.'

Hollywood heavy hitters Samuel L. Jackson and Colin Firth, as well as soccer star David Beckham, have reportedly been cast members in the big-budget film, as well. If sources are correct, Swift will star as a girl who managed to escape being kidnapped by a villain. If the 'Mean' hitmaker has already landed the part, she'll have to find time for martial arts training in her busy schedule.

"It will be Taylor's biggest challenge to date but she cannot wait," an anonymous source tells Ace Showbiz. "She is also looking forward to working with David Beckham, whom she thinks is amazing-looking, but taken."

Swift was also considered for a part in 'Les Miserables,' and she played a small part in 'Valentine's Day,' but she's yet to star in a movie this big. Lucky for her, that fact hasn't seemed to deter director Matthew Vaughn from seeking out the 23-year-old starlet for the part.

"Matthew looked at a number of actresses to play the part before settling on Taylor; apparently she was a natural on the big screen," the source adds. "She's also someone fresh and unseen in Hollywood terms, which was massively appealing."

'The Secret Service' script is based on a comic book series. The movie is expected to hit theaters in November 2014.