Washington DC, April 24 -- The 'I Know What You Did Last Summer' franchise is set to have its third direct instalment in theatres this summer. Despite the best efforts to keep the sequel nostalgic for the fans, the writer-director Jennifer Kaytin Robinson said that she couldn't convince actress Sarah Gellar to reprise her role as Helen Shivers in the upcoming movie, reported Variety.

In a recent interview with Entertainment Weekly, Robinson said that she "tried relentlessly" to fit Gellar into the reboot of the movie, as reported by Variety.

However, her efforts were for nought as Sarah Gellar couldn't accept any possible reason for the resurrection of her character in 'Helen Shivers' in the movie.

"I tried, okay? I harassed her! But s...