Cara Delevingne has helped power Paper Towns straight to the top of the UK box office, Digital Spy reports.

The John Green adaptation debuts in the top spot with takings of £2.7 million, leaving Pixar's emotional rollercoaster Inside Out to retain its position at number two with £1.7m.

Meanwhile, new release Sinister 2 debuts at number three this week with takings of £1.2m.

Ed Helms's comedy reboot Vacation and Jack Whitehall's Bad Education Movie land at seven and eight respectively with £608,748 and £594,861.

Last week's number one, Adam Sandler's gaming comedy Pixels, drops to number six with takings of £820,456.