Ms Paris Hilton earned $22m in 2006 and 2007, court papers say
Paris Hilton is being sued for $8.3m (£5.5m) over claims she failed to promote the DVD release of her 2006 movie Pledge This!
Miami firm Worldwide Entertainment Group says her inaction directly led to the release being a flop.
In papers filed at a Miami court, she said she had told press "any chance I got" the film was "going to be sexy".
Ms Hilton says she honoured a deal to plug a limited cinema release but did not agree to do as much for the DVD.
The trial is scheduled to begin by 8 June.
"Any chance I got, any red carpet, any press, if I was doing something for another product... I would just bring it up - 'Oh, my new sorority film, it's going to be sexy, it's going to be really hot girls'," she said in the papers.
She had done "a huge blowout" with press at the Cannes Film Festival in 2005 to promote the film, she added.
Ms Hilton, one of eight executive producers on the film - billed as a raunchy college comedy - said she was "not sure what a producer does" but that it could involve getting "cool people in the cast".
Her lawyers say that investors in the film made unreasonable last-minute demands for Ms Hilton to attend publicity events when her schedule was already full.
"She's the single busiest person on the planet," her lawyer Michael Weinstein told a pre-trial hearing on Tuesday.
Case documents also show that Ms Hilton made more than $22m (£14.6m) from promotional work, product endorsements, her own line of fragrances and nightclub appearances in 2006 and 2007.